gsutil setmeta does not clear Content-Disposition

It makes two HEAD requests, but never PUT request.

```
gsutil -DD setmeta -h "Content-Disposition" gs://bucket/header.txt
***************************** WARNING *****************************
*** You are running gsutil with debug output enabled.
*** Be aware that debug output includes authentication credentials.
*** Make sure to remove the value of the Authorization header for
*** each HTTP request printed to the console prior to posting to
*** a public medium such as a forum post or Stack Overflow.
***************************** WARNING *****************************
gsutil version: 5.35
checksum: 463ae9998133cda1b7d55035f3d5e7b9 (OK)
boto version: 2.49.0
python version: 3.12.10 (main, Apr 25 2025, 21:39:22) [Clang 20.1.0 ]
OS: Linux 6.8.0-86-generic
multiprocessing available: True
using cloud sdk: True
pass cloud sdk credentials to gsutil: True
config path(s): /root/.boto
gsutil path: /usr/lib/google-cloud-sdk/bin/gsutil
compiled crcmod: True
installed via package manager: False
editable install: False
shim enabled: False
Command being run: /usr/lib/google-cloud-sdk/platform/gsutil/gsutil -o GSUtil:default_project_id=prj1 -o Boto:https_validate_certificates=False -o Boto:ca_certificates_file=/etc/red/certs/root.crt -DD setmeta -h Content-Disposition gs://bucket/header.txt
config_file_list: ['/root/.boto']
config: [('working_dir', '/mnt/pyami'), ('debug', '0'), ('num_retries', '3'), ('ca_certificates_file', '/etc/red/certs/root.crt'), ('https_validate_certificates', 'False'), ('working_dir', '/mnt/pyami'), ('debug', '0'), ('default_project_id', 'prj1'), ('default_region', 'US'), ('resumable_threshold', '629145600'), ('parallel_process_count', '2'), ('parallel_thread_count', '10'), ('parallel_composite_upload_threshold', '0'), ('parallel_composite_upload_component_size', '1000M'), ('sliced_object_download_threshold', '524288'), ('sliced_object_download_component_size', '524288'), ('sliced_object_download_max_components', '3'), ('content_language', 'en'), ('json_api_version', 'v1'), ('prefer_api', 'xml'), ('default_api_version', '1')]
DEBUG 1029 00:50:17.318360 provider.py] Using access key found in config file.
DEBUG 1029 00:50:17.318497 provider.py] Using secret key found in config file.
DEBUG 1029 00:50:17.318927 connection.py] path=/bucket/header.txt
DEBUG 1029 00:50:17.318997 connection.py] auth_path=/bucket/header.txt
DEBUG 1029 00:50:17.319160 connection.py] Method: HEAD
DEBUG 1029 00:50:17.319204 connection.py] Path: /bucket/header.txt
DEBUG 1029 00:50:17.319228 connection.py] Data:
DEBUG 1029 00:50:17.319247 connection.py] Headers: {'x-goog-api-version': '1'}
DEBUG 1029 00:50:17.319262 connection.py] Host: redt.my.com:8021
DEBUG 1029 00:50:17.319277 connection.py] Port: 8021
DEBUG 1029 00:50:17.319290 connection.py] Params: {}
DEBUG 1029 00:50:17.319342 connection.py] establishing HTTPS connection: host=redt.my.com, kwargs={'timeout': 70, 'port': 8021}
DEBUG 1029 00:50:17.319874 connection.py] Token: None
DEBUG 1029 00:50:17.319990 auth.py] StringToSign:
HEAD
Wed, 29 Oct 2025 00:50:17 GMT
x-goog-api-version:1
/bucket/header.txt
DEBUG 1029 00:50:17.320060 auth.py] Signature:
GOOG1 TFRIBVU6UELM9KKZGZ9P:nrLRasNfVPKl/yf3c3lHElrUf7Q=
DEBUG 1029 00:50:17.320093 connection.py] Final headers: {'x-goog-api-version': '1', 'User-Agent': 'Boto/2.49.0 Python/3.12.10 Linux/6.8.0-86-generic gsutil/5.35 (linux) analytics/disabled interactive/True invocation-id/945b61ef3c4749aab9439ec93ac75be6 command/setmeta google-cloud-sdk/537.0.0', 'Date': 'Wed, 29 Oct 2025 00:50:17 GMT', 'Authorization': 'GOOG1 TFRIBVU6UELM9KKZGZ9P:nrLRasNfVPKl/yf3c3lHElrUf7Q=', 'Content-Length': '0'}
send: b'HEAD /bucket/header.txt HTTP/1.1\r\nHost: redt.my.com:8021\r\nAccept-Encoding: identity\r\nx-goog-api-version: 1\r\nUser-Agent: Boto/2.49.0 Python/3.12.10 Linux/6.8.0-86-generic gsutil/5.35 (linux) analytics/disabled interactive/True invocation-id/945b61ef3c4749aab9439ec93ac75be6 command/setmeta google-cloud-sdk/537.0.0\r\nDate: Wed, 29 Oct 2025 00:50:17 GMT\r\nAuthorization: GOOG1 TFRIBVU6UELM9KKZGZ9P:nrLRasNfVPKl/yf3c3lHElrUf7Q=\r\nContent-Length: 0\r\n\r\n'
Zero length chunk ignored
reply: 'HTTP/1.1 200 OK\r\n'
header: Content-Length: 12
header: Date: Wed, 29 Oct 2025 00:50:17 GMT
header: Last-Modified: Wed, 29 Oct 2025 00:43:46 GMT
header: Cache-Control: public, max-age=3600
header: Content-Disposition: inline
header: Content-Encoding: identity
header: Content-Language: en
header: Content-Type: text/html
header: x-amz-tagging-count: 0
header: ETag: "8fac2894018e7be8d026aa7151192b91"
header: x-goog-generation: 18446744073709551615
header: x-goog-metageneration: 1
header: x-goog-storage-class: STANDARD
header: x-goog-stored-content-encoding: identity
header: Accept-Ranges: bytes
header: Connection: keep-alive
header: x-amz-request-id: 510000000035
DEBUG 1029 00:50:17.332889 connection.py] Response headers: [('Content-Length', '12'), ('Date', 'Wed, 29 Oct 2025 00:50:17 GMT'), ('Last-Modified', 'Wed, 29 Oct 2025 00:43:46 GMT'), ('Cache-Control', 'public, max-age=3600'), ('Content-Disposition', 'inline'), ('Content-Encoding', 'identity'), ('Content-Language', 'en'), ('Content-Type', 'text/html'), ('x-amz-tagging-count', '0'), ('ETag', '"8fac2894018e7be8d026aa7151192b91"'), ('x-goog-generation', '18446744073709551615'), ('x-goog-metageneration', '1'), ('x-goog-storage-class', 'STANDARD'), ('x-goog-stored-content-encoding', 'identity'), ('Accept-Ranges', 'bytes'), ('Connection', 'keep-alive'), ('x-amz-request-id', '510000000035')]
process count: 1
thread count: 1
Setting metadata on gs://bucket/header.txt...
DEBUG 1029 00:50:17.374858 connection.py] path=/bucket/header.txt
DEBUG 1029 00:50:17.374932 connection.py] auth_path=/bucket/header.txt
DEBUG 1029 00:50:17.374978 connection.py] Method: HEAD
DEBUG 1029 00:50:17.374999 connection.py] Path: /bucket/header.txt
DEBUG 1029 00:50:17.375014 connection.py] Data:
DEBUG 1029 00:50:17.375031 connection.py] Headers: {'x-goog-api-version': '1'}
DEBUG 1029 00:50:17.375046 connection.py] Host: redt.my.com:8021
DEBUG 1029 00:50:17.375062 connection.py] Port: 8021
DEBUG 1029 00:50:17.375076 connection.py] Params: {}
DEBUG 1029 00:50:17.375153 connection.py] Token: None
DEBUG 1029 00:50:17.375215 auth.py] StringToSign:
HEAD
Wed, 29 Oct 2025 00:50:17 GMT
x-goog-api-version:1
/bucket/header.txt
DEBUG 1029 00:50:17.375265 auth.py] Signature:
GOOG1 TFRIBVU6UELM9KKZGZ9P:nrLRasNfVPKl/yf3c3lHElrUf7Q=
DEBUG 1029 00:50:17.375290 connection.py] Final headers: {'x-goog-api-version': '1', 'User-Agent': 'Boto/2.49.0 Python/3.12.10 Linux/6.8.0-86-generic gsutil/5.35 (linux) analytics/disabled interactive/True invocation-id/945b61ef3c4749aab9439ec93ac75be6 command/setmeta google-cloud-sdk/537.0.0', 'Date': 'Wed, 29 Oct 2025 00:50:17 GMT', 'Authorization': 'GOOG1 TFRIBVU6UELM9KKZGZ9P:nrLRasNfVPKl/yf3c3lHElrUf7Q=', 'Content-Length': '0'}
send: b'HEAD /bucket/header.txt HTTP/1.1\r\nHost: redt.my.com:8021\r\nAccept-Encoding: identity\r\nx-goog-api-version: 1\r\nUser-Agent: Boto/2.49.0 Python/3.12.10 Linux/6.8.0-86-generic gsutil/5.35 (linux) analytics/disabled interactive/True invocation-id/945b61ef3c4749aab9439ec93ac75be6 command/setmeta google-cloud-sdk/537.0.0\r\nDate: Wed, 29 Oct 2025 00:50:17 GMT\r\nAuthorization: GOOG1 TFRIBVU6UELM9KKZGZ9P:nrLRasNfVPKl/yf3c3lHElrUf7Q=\r\nContent-Length: 0\r\n\r\n'
Zero length chunk ignored
reply: 'HTTP/1.1 200 OK\r\n'
header: Content-Length: 12
header: Date: Wed, 29 Oct 2025 00:50:17 GMT
header: Last-Modified: Wed, 29 Oct 2025 00:43:46 GMT
header: Cache-Control: public, max-age=3600
header: Content-Disposition: inline
header: Content-Encoding: identity
header: Content-Language: en
header: Content-Type: text/html
header: x-amz-tagging-count: 0
header: ETag: "8fac2894018e7be8d026aa7151192b91"
header: x-goog-generation: 18446744073709551615
header: x-goog-metageneration: 1
header: x-goog-storage-class: STANDARD
header: x-goog-stored-content-encoding: identity
header: Accept-Ranges: bytes
header: Connection: keep-alive
header: x-amz-request-id: 510000000036
DEBUG 1029 00:50:17.380430 connection.py] Response headers: [('Content-Length', '12'), ('Date', 'Wed, 29 Oct 2025 00:50:17 GMT'), ('Last-Modified', 'Wed, 29 Oct 2025 00:43:46 GMT'), ('Cache-Control', 'public, max-age=3600'), ('Content-Disposition', 'inline'), ('Content-Encoding', 'identity'), ('Content-Language', 'en'), ('Content-Type', 'text/html'), ('x-amz-tagging-count', '0'), ('ETag', '"8fac2894018e7be8d026aa7151192b91"'), ('x-goog-generation', '18446744073709551615'), ('x-goog-metageneration', '1'), ('x-goog-storage-class', 'STANDARD'), ('x-goog-stored-content-encoding', 'identity'), ('Accept-Ranges', 'bytes'), ('Connection', 'keep-alive'), ('x-amz-request-id', '510000000036')]
/ [1 objects]
Operation completed over 1 objects.

```
If we use two headers, the first has value and the second is empty, gsutil overrides empty header from HEAD response

send: b'PUT /bucket/header.txt HTTP/1.1\r\nHost: redt.my.com:8021\r\nAccept-Encoding: identity\r\nx-goog-api-version: 1\r\nx-goog-if-generation-match: 18446744073709551615\r\nx-goog-if-metageneration-match: 1\r\nx-goog-copy-source: bucket/header.txt\r\nx-goog-storage-class: STANDARD\r\nx-goog-metadata-directive: REPLACE\r\ncontent-type: text/html\r\ncontent-language: en\r\ncache-control: public, max-age=3600\r\ncontent-encoding: identity\r\n**content-disposition: inline**\r\nUser-Agent: Boto/2.49.0 Python/3.12.10 Linux/6.8.0-86-generic gsutil/5.35 (linux) analytics/disabled interactive/True invocation-id/76854ace95c9428b9637cb03040cd871 command/setmeta google-cloud-sdk/537.0.0\r\nDate: Wed, 29 Oct 2025 00:43:46 GMT\r\nAuthorization: GOOG1 TFRIBVU6UELM9KKZGZ9P:8hdKKW2SqZ7TfRI7VLONZG6Dz7g=\r\nContent-Length: 0\r\n\r\n'

Full log

```
gsutil -DD setmeta -h "Content-Type:text/html" -h "Content-Disposition" gs://bucket/header.txt
***************************** WARNING *****************************
*** You are running gsutil with debug output enabled.
*** Be aware that debug output includes authentication credentials.
*** Make sure to remove the value of the Authorization header for
*** each HTTP request printed to the console prior to posting to
*** a public medium such as a forum post or Stack Overflow.
***************************** WARNING *****************************
gsutil version: 5.35
checksum: 27746065e6ec52b6a38409907fd40076 (!= 463ae9998133cda1b7d55035f3d5e7b9)
boto version: 2.49.0
python version: 3.12.10 (main, Apr 25 2025, 21:39:22) [Clang 20.1.0 ]
OS: Linux 6.8.0-86-generic
multiprocessing available: True
using cloud sdk: True
pass cloud sdk credentials to gsutil: True
config path(s): /root/.boto
gsutil path: /usr/lib/google-cloud-sdk/bin/gsutil
compiled crcmod: True
installed via package manager: False
editable install: False
shim enabled: False
Command being run: /usr/lib/google-cloud-sdk/platform/gsutil/gsutil -o GSUtil:default_project_id=prj1 -o Boto:https_validate_certificates=False -o Boto:ca_certificates_file=/etc/red/certs/root.crt -DD setmeta -h Content-Type:text/html -h Content-Disposition gs://bucket/header.txt
config_file_list: ['/root/.boto']
config: [('working_dir', '/mnt/pyami'), ('debug', '0'), ('num_retries', '3'), ('ca_certificates_file', '/etc/red/certs/root.crt'), ('https_validate_certificates', 'False'), ('working_dir', '/mnt/pyami'), ('debug', '0'), ('default_project_id', 'prj1'), ('default_region', 'US'), ('resumable_threshold', '629145600'), ('parallel_process_count', '2'), ('parallel_thread_count', '10'), ('parallel_composite_upload_threshold', '0'), ('parallel_composite_upload_component_size', '1000M'), ('sliced_object_download_threshold', '524288'), ('sliced_object_download_component_size', '524288'), ('sliced_object_download_max_components', '3'), ('content_language', 'en'), ('json_api_version', 'v1'), ('prefer_api', 'xml'), ('default_api_version', '1')]
DEBUG 1029 00:43:46.434238 provider.py] Using access key found in config file.
DEBUG 1029 00:43:46.434397 provider.py] Using secret key found in config file.
DEBUG 1029 00:43:46.434867 connection.py] path=/bucket/header.txt
DEBUG 1029 00:43:46.434959 connection.py] auth_path=/bucket/header.txt
DEBUG 1029 00:43:46.435145 connection.py] Method: HEAD
DEBUG 1029 00:43:46.435193 connection.py] Path: /bucket/header.txt
DEBUG 1029 00:43:46.435230 connection.py] Data:
DEBUG 1029 00:43:46.435271 connection.py] Headers: {'x-goog-api-version': '1'}
DEBUG 1029 00:43:46.435306 connection.py] Host: redt.my.com:8021
DEBUG 1029 00:43:46.435340 connection.py] Port: 8021
DEBUG 1029 00:43:46.435373 connection.py] Params: {}
DEBUG 1029 00:43:46.435454 connection.py] establishing HTTPS connection: host=redt.my.com, kwargs={'timeout': 70, 'port': 8021}
DEBUG 1029 00:43:46.436057 connection.py] Token: None
DEBUG 1029 00:43:46.436209 auth.py] StringToSign:
HEAD
Wed, 29 Oct 2025 00:43:46 GMT
x-goog-api-version:1
/bucket/header.txt
DEBUG 1029 00:43:46.436335 auth.py] Signature:
GOOG1 TFRIBVU6UELM9KKZGZ9P:Oi7vRtoWk2dbXG2YHCzRVyzYKd8=
DEBUG 1029 00:43:46.436389 connection.py] Final headers: {'x-goog-api-version': '1', 'User-Agent': 'Boto/2.49.0 Python/3.12.10 Linux/6.8.0-86-generic gsutil/5.35 (linux) analytics/disabled interactive/True invocation-id/76854ace95c9428b9637cb03040cd871 command/setmeta google-cloud-sdk/537.0.0', 'Date': 'Wed, 29 Oct 2025 00:43:46 GMT', 'Authorization': 'GOOG1 TFRIBVU6UELM9KKZGZ9P:Oi7vRtoWk2dbXG2YHCzRVyzYKd8=', 'Content-Length': '0'}
send: b'HEAD /bucket/header.txt HTTP/1.1\r\nHost: redt.my.com:8021\r\nAccept-Encoding: identity\r\nx-goog-api-version: 1\r\nUser-Agent: Boto/2.49.0 Python/3.12.10 Linux/6.8.0-86-generic gsutil/5.35 (linux) analytics/disabled interactive/True invocation-id/76854ace95c9428b9637cb03040cd871 command/setmeta google-cloud-sdk/537.0.0\r\nDate: Wed, 29 Oct 2025 00:43:46 GMT\r\nAuthorization: GOOG1 TFRIBVU6UELM9KKZGZ9P:Oi7vRtoWk2dbXG2YHCzRVyzYKd8=\r\nContent-Length: 0\r\n\r\n'
Zero length chunk ignored
reply: 'HTTP/1.1 200 OK\r\n'
header: Content-Length: 12
header: Date: Wed, 29 Oct 2025 00:43:46 GMT
header: Last-Modified: Wed, 29 Oct 2025 00:43:39 GMT
header: Cache-Control: public, max-age=3600
header: Content-Disposition: inline
header: Content-Encoding: identity
header: Content-Language: en
header: Content-Type: text/html
header: x-amz-tagging-count: 0
header: ETag: "8fac2894018e7be8d026aa7151192b91"
header: x-goog-generation: 18446744073709551615
header: x-goog-metageneration: 1
header: x-goog-storage-class: STANDARD
header: x-goog-stored-content-encoding: identity
header: Accept-Ranges: bytes
header: Connection: keep-alive
header: x-amz-request-id: 510000000027
DEBUG 1029 00:43:46.447174 connection.py] Response headers: [('Content-Length', '12'), ('Date', 'Wed, 29 Oct 2025 00:43:46 GMT'), ('Last-Modified', 'Wed, 29 Oct 2025 00:43:39 GMT'), ('Cache-Control', 'public, max-age=3600'), ('Content-Disposition', 'inline'), ('Content-Encoding', 'identity'), ('Content-Language', 'en'), ('Content-Type', 'text/html'), ('x-amz-tagging-count', '0'), ('ETag', '"8fac2894018e7be8d026aa7151192b91"'), ('x-goog-generation', '18446744073709551615'), ('x-goog-metageneration', '1'), ('x-goog-storage-class', 'STANDARD'), ('x-goog-stored-content-encoding', 'identity'), ('Accept-Ranges', 'bytes'), ('Connection', 'keep-alive'), ('x-amz-request-id', '510000000027')]
process count: 1
thread count: 1
Setting metadata on gs://bucket/header.txt...
DEBUG 1029 00:43:46.491314 connection.py] path=/bucket/header.txt
DEBUG 1029 00:43:46.491400 connection.py] auth_path=/bucket/header.txt
DEBUG 1029 00:43:46.491466 connection.py] Method: HEAD
DEBUG 1029 00:43:46.491511 connection.py] Path: /bucket/header.txt
DEBUG 1029 00:43:46.491549 connection.py] Data:
DEBUG 1029 00:43:46.491584 connection.py] Headers: {}
DEBUG 1029 00:43:46.491620 connection.py] Host: redt.my.com:8021
DEBUG 1029 00:43:46.491656 connection.py] Port: 8021
DEBUG 1029 00:43:46.491690 connection.py] Params: {}
DEBUG 1029 00:43:46.491795 connection.py] Token: None
DEBUG 1029 00:43:46.491880 auth.py] StringToSign:
HEAD
Wed, 29 Oct 2025 00:43:46 GMT
/bucket/header.txt
DEBUG 1029 00:43:46.491976 auth.py] Signature:
GOOG1 TFRIBVU6UELM9KKZGZ9P:rWaEsEeICAVCpmLdzCcVpsXeYvM=
DEBUG 1029 00:43:46.492024 connection.py] Final headers: {'User-Agent': 'Boto/2.49.0 Python/3.12.10 Linux/6.8.0-86-generic gsutil/5.35 (linux) analytics/disabled interactive/True invocation-id/76854ace95c9428b9637cb03040cd871 command/setmeta google-cloud-sdk/537.0.0', 'Date': 'Wed, 29 Oct 2025 00:43:46 GMT', 'Authorization': 'GOOG1 TFRIBVU6UELM9KKZGZ9P:rWaEsEeICAVCpmLdzCcVpsXeYvM=', 'Content-Length': '0'}
send: b'HEAD /bucket/header.txt HTTP/1.1\r\nHost: redt.my.com:8021\r\nAccept-Encoding: identity\r\nUser-Agent: Boto/2.49.0 Python/3.12.10 Linux/6.8.0-86-generic gsutil/5.35 (linux) analytics/disabled interactive/True invocation-id/76854ace95c9428b9637cb03040cd871 command/setmeta google-cloud-sdk/537.0.0\r\nDate: Wed, 29 Oct 2025 00:43:46 GMT\r\nAuthorization: GOOG1 TFRIBVU6UELM9KKZGZ9P:rWaEsEeICAVCpmLdzCcVpsXeYvM=\r\nContent-Length: 0\r\n\r\n'
Zero length chunk ignored
reply: 'HTTP/1.1 200 OK\r\n'
header: Content-Length: 12
header: Date: Wed, 29 Oct 2025 00:43:46 GMT
header: Last-Modified: Wed, 29 Oct 2025 00:43:39 GMT
header: Cache-Control: public, max-age=3600
header: Content-Disposition: inline
header: Content-Encoding: identity
header: Content-Language: en
header: Content-Type: text/html
header: x-amz-tagging-count: 0
header: ETag: "8fac2894018e7be8d026aa7151192b91"
header: x-goog-generation: 18446744073709551615
header: x-goog-metageneration: 1
header: x-goog-storage-class: STANDARD
header: x-goog-stored-content-encoding: identity
header: Accept-Ranges: bytes
header: Connection: keep-alive
header: x-amz-request-id: 510000000028
DEBUG 1029 00:43:46.499778 connection.py] Response headers: [('Content-Length', '12'), ('Date', 'Wed, 29 Oct 2025 00:43:46 GMT'), ('Last-Modified', 'Wed, 29 Oct 2025 00:43:39 GMT'), ('Cache-Control', 'public, max-age=3600'), ('Content-Disposition', 'inline'), ('Content-Encoding', 'identity'), ('Content-Language', 'en'), ('Content-Type', 'text/html'), ('x-amz-tagging-count', '0'), ('ETag', '"8fac2894018e7be8d026aa7151192b91"'), ('x-goog-generation', '18446744073709551615'), ('x-goog-metageneration', '1'), ('x-goog-storage-class', 'STANDARD'), ('x-goog-stored-content-encoding', 'identity'), ('Accept-Ranges', 'bytes'), ('Connection', 'keep-alive'), ('x-amz-request-id', '510000000028')]
DEBUG 1029 00:43:46.500023 connection.py] path=/bucket/header.txt
DEBUG 1029 00:43:46.500077 connection.py] auth_path=/bucket/header.txt
DEBUG 1029 00:43:46.500136 connection.py] Method: PUT
DEBUG 1029 00:43:46.500171 connection.py] Path: /bucket/header.txt
DEBUG 1029 00:43:46.500207 connection.py] Data:
DEBUG 1029 00:43:46.500247 connection.py] Headers: {'x-goog-api-version': '1', 'x-goog-if-generation-match': '18446744073709551615', 'x-goog-if-metageneration-match': '1', 'x-goog-copy-source': 'bucket/header.txt', 'x-goog-storage-class': 'STANDARD', 'x-goog-metadata-directive': 'REPLACE', 'content-type': 'text/html', 'content-language': 'en', 'cache-control': 'public, max-age=3600', 'content-encoding': 'identity', 'content-disposition': 'inline'}
DEBUG 1029 00:43:46.500282 connection.py] Host: redt.my.com:8021
DEBUG 1029 00:43:46.500314 connection.py] Port: 8021
DEBUG 1029 00:43:46.500351 connection.py] Params: {}
DEBUG 1029 00:43:46.500438 connection.py] Token: None
DEBUG 1029 00:43:46.500522 auth.py] StringToSign:
PUT
text/html
Wed, 29 Oct 2025 00:43:46 GMT
x-goog-api-version:1
x-goog-copy-source:bucket/header.txt
x-goog-if-generation-match:18446744073709551615
x-goog-if-metageneration-match:1
x-goog-metadata-directive:REPLACE
x-goog-storage-class:STANDARD
/bucket/header.txt
DEBUG 1029 00:43:46.500632 auth.py] Signature:
GOOG1 TFRIBVU6UELM9KKZGZ9P:8hdKKW2SqZ7TfRI7VLONZG6Dz7g=
DEBUG 1029 00:43:46.500683 connection.py] Final headers: {'x-goog-api-version': '1', 'x-goog-if-generation-match': '18446744073709551615', 'x-goog-if-metageneration-match': '1', 'x-goog-copy-source': 'bucket/header.txt', 'x-goog-storage-class': 'STANDARD', 'x-goog-metadata-directive': 'REPLACE', 'content-type': 'text/html', 'content-language': 'en', 'cache-control': 'public, max-age=3600', 'content-encoding': 'identity', 'content-disposition': 'inline', 'User-Agent': 'Boto/2.49.0 Python/3.12.10 Linux/6.8.0-86-generic gsutil/5.35 (linux) analytics/disabled interactive/True invocation-id/76854ace95c9428b9637cb03040cd871 command/setmeta google-cloud-sdk/537.0.0', 'Date': 'Wed, 29 Oct 2025 00:43:46 GMT', 'Authorization': 'GOOG1 TFRIBVU6UELM9KKZGZ9P:8hdKKW2SqZ7TfRI7VLONZG6Dz7g=', 'Content-Length': '0'}
send: b'PUT /bucket/header.txt HTTP/1.1\r\nHost: redt.my.com:8021\r\nAccept-Encoding: identity\r\nx-goog-api-version: 1\r\nx-goog-if-generation-match: 18446744073709551615\r\nx-goog-if-metageneration-match: 1\r\nx-goog-copy-source: bucket/header.txt\r\nx-goog-storage-class: STANDARD\r\nx-goog-metadata-directive: REPLACE\r\ncontent-type: text/html\r\ncontent-language: en\r\ncache-control: public, max-age=3600\r\ncontent-encoding: identity\r\ncontent-disposition: inline\r\nUser-Agent: Boto/2.49.0 Python/3.12.10 Linux/6.8.0-86-generic gsutil/5.35 (linux) analytics/disabled interactive/True invocation-id/76854ace95c9428b9637cb03040cd871 command/setmeta google-cloud-sdk/537.0.0\r\nDate: Wed, 29 Oct 2025 00:43:46 GMT\r\nAuthorization: GOOG1 TFRIBVU6UELM9KKZGZ9P:8hdKKW2SqZ7TfRI7VLONZG6Dz7g=\r\nContent-Length: 0\r\n\r\n'
Zero length chunk ignored
reply: 'HTTP/1.1 200 OK\r\n'
header: Content-Length: 187
header: Date: Wed, 29 Oct 2025 00:43:46 GMT
header: x-amz-copy-source-version-id: LygHa16AHYF
header: x-goog-generation: 9223372036854775807
header: x-goog-metageneration: 1
header: Connection: keep-alive
header: x-amz-request-id: 510000000029
DEBUG 1029 00:43:46.514482 connection.py] Response headers: [('Content-Length', '187'), ('Date', 'Wed, 29 Oct 2025 00:43:46 GMT'), ('x-amz-copy-source-version-id', 'LygHa16AHYF'), ('x-goog-generation', '9223372036854775807'), ('x-goog-metageneration', '1'), ('Connection', 'keep-alive'), ('x-amz-request-id', '510000000029')]
DEBUG 1029 00:43:46.516011 connection.py] path=/bucket/header.txt
DEBUG 1029 00:43:46.516107 connection.py] auth_path=/bucket/header.txt
DEBUG 1029 00:43:46.516188 connection.py] Method: HEAD
DEBUG 1029 00:43:46.516235 connection.py] Path: /bucket/header.txt
DEBUG 1029 00:43:46.516276 connection.py] Data:
DEBUG 1029 00:43:46.516320 connection.py] Headers: {'x-goog-api-version': '1'}
DEBUG 1029 00:43:46.516363 connection.py] Host: redt.my.com:8021
DEBUG 1029 00:43:46.516405 connection.py] Port: 8021
DEBUG 1029 00:43:46.516446 connection.py] Params: {}
DEBUG 1029 00:43:46.516553 connection.py] Token: None
DEBUG 1029 00:43:46.516643 auth.py] StringToSign:
HEAD
Wed, 29 Oct 2025 00:43:46 GMT
x-goog-api-version:1
/bucket/header.txt
DEBUG 1029 00:43:46.516759 auth.py] Signature:
GOOG1 TFRIBVU6UELM9KKZGZ9P:Oi7vRtoWk2dbXG2YHCzRVyzYKd8=
DEBUG 1029 00:43:46.516820 connection.py] Final headers: {'x-goog-api-version': '1', 'User-Agent': 'Boto/2.49.0 Python/3.12.10 Linux/6.8.0-86-generic gsutil/5.35 (linux) analytics/disabled interactive/True invocation-id/76854ace95c9428b9637cb03040cd871 command/setmeta google-cloud-sdk/537.0.0', 'Date': 'Wed, 29 Oct 2025 00:43:46 GMT', 'Authorization': 'GOOG1 TFRIBVU6UELM9KKZGZ9P:Oi7vRtoWk2dbXG2YHCzRVyzYKd8=', 'Content-Length': '0'}
send: b'HEAD /bucket/header.txt HTTP/1.1\r\nHost: redt.my.com:8021\r\nAccept-Encoding: identity\r\nx-goog-api-version: 1\r\nUser-Agent: Boto/2.49.0 Python/3.12.10 Linux/6.8.0-86-generic gsutil/5.35 (linux) analytics/disabled interactive/True invocation-id/76854ace95c9428b9637cb03040cd871 command/setmeta google-cloud-sdk/537.0.0\r\nDate: Wed, 29 Oct 2025 00:43:46 GMT\r\nAuthorization: GOOG1 TFRIBVU6UELM9KKZGZ9P:Oi7vRtoWk2dbXG2YHCzRVyzYKd8=\r\nContent-Length: 0\r\n\r\n'
Zero length chunk ignored
reply: 'HTTP/1.1 200 OK\r\n'
header: Content-Length: 12
header: Date: Wed, 29 Oct 2025 00:43:46 GMT
header: Last-Modified: Wed, 29 Oct 2025 00:43:46 GMT
header: Cache-Control: public, max-age=3600
header: Content-Disposition: inline
header: Content-Encoding: identity
header: Content-Language: en
header: Content-Type: text/html
header: x-amz-tagging-count: 0
header: ETag: "8fac2894018e7be8d026aa7151192b91"
header: x-goog-generation: 18446744073709551615
header: x-goog-metageneration: 1
header: x-goog-storage-class: STANDARD
header: x-goog-stored-content-encoding: identity
header: Accept-Ranges: bytes
header: Connection: keep-alive
header: x-amz-request-id: 510000000030
DEBUG 1029 00:43:46.518659 connection.py] Response headers: [('Content-Length', '12'), ('Date', 'Wed, 29 Oct 2025 00:43:46 GMT'), ('Last-Modified', 'Wed, 29 Oct 2025 00:43:46 GMT'), ('Cache-Control', 'public, max-age=3600'), ('Content-Disposition', 'inline'), ('Content-Encoding', 'identity'), ('Content-Language', 'en'), ('Content-Type', 'text/html'), ('x-amz-tagging-count', '0'), ('ETag', '"8fac2894018e7be8d026aa7151192b91"'), ('x-goog-generation', '18446744073709551615'), ('x-goog-metageneration', '1'), ('x-goog-storage-class', 'STANDARD'), ('x-goog-stored-content-encoding', 'identity'), ('Accept-Ranges', 'bytes'), ('Connection', 'keep-alive'), ('x-amz-request-id', '510000000030')]
/ [1 objects]
Operation completed over 1 objects.

```

Start by reproducing the issue with the provided gsutil setmeta commands and inspect the setmeta command path that handles metadata replacement. Confirm the fix by verifying that a request with an empty Content-Disposition results in a PUT and removes the existing value, while other metadata remains intact.

Written by the indexing model from the issue text.