[Bug]: Notification was not parsed by any notifier [app: files, subject: transferownershipRequestDenied]

[SystemKeeper]

⚠️ 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

{
    "reqId": "xwMfVBpMKfT2BCf46dbH",
    "level": 1,
    "time": "2024-06-10T13:12:58+02:00",
    "remoteAddr": "172.31.2.89",
    "user": "marcel.mueller",
    "app": "no app in context",
    "method": "GET",
    "url": "/ocs/v2.php/apps/notifications/api/v2/notifications",
    "message": "Notification was not parsed by any notifier [app: files, subject: transferownershipRequestDenied]",
    "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36",
    "version": "29.0.2.2",
    "data": []
}

Steps to reproduce

Posting here, since it's from the files app.

Expected behavior

No error.

Installation method

Community Manual installation with Archive

Nextcloud Server version

29

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.2

Web server

Apache (supported)

Database engine version

MySQL

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

No response

List of activated Apps

No response

Nextcloud Signing status

No response

Nextcloud Logs

No response

Additional info

No response

[susnux]

This was never implemented o.O