Spring Cloud Consul config watch keeps generating warning messages

Describe the bug
Spring Cloud Consul config 5.0.0 keeps giving us warnings messages when enabling config watches for configuration, and the config data can be found with config/application/data(data is the key).

[
{
"key": "config/",
"flags": 0,
"value": ""
},
{
"key": "config/application/",
"flags": 0,
"value": ""
},
{
"key": "config/application/data",
"flags": 0,
"value": "bG9nZ2luZzoKICBsZXZlbDoKICAgIG9yZy5zcHJpbmdmcmFtZXdvcmsuY29yZS5lbnY6IERFQlVH"
},
{
"key": "config/gateway/",
"flags": 0,
"value": ""
},
{
"key": "config/gateway/data",
"flags": 0,
"value": ""
}
]

Sample

gateway.zip

The logs are as below. and if set fail fast, It will produce errors. and actually, we had provided the config items in consul KV.

2026-01-26T18:44:20.470+08:00 WARN 36468 --- [gateway] [TaskScheduler-1] o.s.cloud.consul.config.ConfigWatch : Error querying consul Key/Values for context 'config/gateway/'. Message: I/O error on GET request for "http://localhost:8500/v1/kv/config/gateway/": null
2026-01-26T18:44:30.475+08:00 WARN 36468 --- [gateway] [ctor-http-nio-5] r.netty.http.client.HttpClientConnect : [74757339-1, L:/127.0.0.1:62403 - R:localhost/127.0.0.1:8500] The connection observed an error

io.netty.handler.timeout.ReadTimeoutException

2026-01-26T18:44:30.475+08:00 WARN 36468 --- [gateway] [TaskScheduler-1] o.s.cloud.consul.config.ConfigWatch : Error querying consul Key/Values for context 'config/application/'. Message: I/O error on GET request for "http://localhost:8500/v1/kv/config/application/": null
2026-01-26T18:45:10.488+08:00 WARN 36468 --- [gateway] [ctor-http-nio-7] r.netty.http.client.HttpClientConnect : [61d86986-1, L:/127.0.0.1:62448 - R:localhost/127.0.0.1:8500] The connection observed an error

io.netty.handler.timeout.ReadTimeoutException

2026-01-26T18:45:10.489+08:00 WARN 36468 --- [gateway] [TaskScheduler-1] o.s.cloud.consul.config.ConfigWatch : Error querying consul Key/Values for context 'config/gateway/'. Message: I/O error on GET request for "http://localhost:8500/v1/kv/config/gateway/": null
2026-01-26T18:45:20.504+08:00 WARN 36468 --- [gateway] [ctor-http-nio-2] r.netty.http.client.HttpClientConnect : [df3e3ad3-25, L:/127.0.0.1:62388 - R:localhost/127.0.0.1:8500] The connection observed an error

io.netty.handler.timeout.ReadTimeoutException

Start with the attached gateway.zip reproducer and the ConfigWatch warnings for the config/application/ and config/gateway/ contexts. Reproduce the Consul KV setup shown in the issue, then trace why the watch requests hit ReadTimeoutException despite existing data. Done means the watches retrieve the provided configuration without repeated warning messages.