[Bug]: uploading a folder into a folder, wich name starts with # fails using any browser

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

Errors when uploding folders with files into a folde whose name starts with #
i.E. #test, #Infos, ...

Steps to reproduce

1. use a browser fpr uploading a folder from ypur local data
2. create a new folder at server named i.e. #testupload (name has to start with #) and go into
3. use ui (new , ulpload folder ) or use mouse to drop a local folder
4. Errors: the folder does not exist any more

-> files were uploaded , folders not

Expected behavior

Folder Upload into any folder at server as it has been working before 33

Nextcloud Server version

33

Operating system

Debian/Ubuntu

PHP engine version

None

Web server

None

Database engine version

None

Is this bug present after an update or on a fresh install?

None

Are you using the Nextcloud Server Encryption module?

None

What user-backends are you using?

• Default user-backend (database)
• LDAP/ Active Directory
• SSO - SAML
• Other

Configuration report

List of activated Apps

Nextcloud Signing status

Nextcloud Logs

Additional info

using Nextcloud 33.0.6 hostet by Hetzner as StorageShare

No source files or tests are identified in the report. Reproduce the failure in the browser by uploading a folder into a server folder whose name starts with #, then trace the folder-upload handling; done means both the folder and its files are uploaded successfully.