[Bug]: Editing a pdf from a public share does NOT create a new file version

[skjnldsv]

cc @artonge @icewind1991

Bug description

When you edit a file in a public share with edit rights, no file versions are created.
You can easily try that with a pdf and use the pdf viewer app.

⚠️ this is NOT a pdf viewer bug. The saving request is a standard PUT meaning any other PUT would behaves the same

Steps to reproduce

1. Share a pdf as public link
2. Open link in a private window
3. See the pdf viewer
4. Click the top right drawing tool
5. Draw a fancy squiggly line
6. Click save button
7. See a PUT request
8. As the owner account, check the pdf sidebar, look the files versions, see only one version.
9. Open the file as the owner, you can see the squiggly line and you have now lost the original file

Expected behavior

File version is created

Nextcloud Server version

32

Operating system

Other

PHP engine version

PHP 8.4

Web server

Apache (supported)

Database engine version

SQlite

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

Fresh Nextcloud Server install

Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

What user-backends are you using?

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

Configuration report

{
    "system": {
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "localhost"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "sqlite3",
        "version": "32.0.8.1",
        "overwrite.cli.url": "http:\/\/localhost",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "updater.release.channel": "git",
        "installed": true,
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "loglevel": 0,
        "maintenance": false,
        "has_internet_connection": false
    }
}

List of activated Apps

Enabled:
  - cloud_federation_api: 1.16.0
  - comments: 1.22.0
  - contactsinteraction: 1.13.1
  - dashboard: 7.12.0
  - dav: 1.34.2
  - federatedfilesharing: 1.22.0
  - federation: 1.22.0
  - files: 2.4.0
  - files_pdfviewer: 5.0.0
  - files_reminders: 1.5.0
  - files_sharing: 1.24.1
  - files_trashbin: 1.22.0
  - files_versions: 1.25.0
  - lookup_server_connector: 1.20.0
  - oauth2: 1.20.0
  - profile: 1.1.0
  - provisioning_api: 1.22.0
  - settings: 1.15.1
  - sharebymail: 1.22.0
  - systemtags: 1.22.0
  - theming: 2.7.0
  - twofactor_backupcodes: 1.21.0
  - updatenotification: 1.22.0
  - user_status: 1.12.0
  - viewer: 5.0.0
  - weather_status: 1.12.0
  - webhook_listeners: 1.3.0
  - workflowengine: 2.14.0
Disabled:
  - admin_audit: 1.22.0
  - encryption: 2.20.0
  - files_external: 1.24.1
  - testing: 1.22.0
  - user_ldap: 1.23.0

Nextcloud Signing status

Nextcloud Logs

Additional info

No response