[Bug]: Not able to download *.bak files

[L00tz1ffer]

⚠️ This issue respects the following points: ⚠️

• [X] This is a bug, not a question or a configuration/webserver/proxy issue.
• [X] This issue is not already reported on Github (I've searched it).
• [X] Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• [X] Nextcloud Server is running on 64bit capable CPU, PHP and OS.
• [X] I agree to follow Nextcloud's Code of Conduct.

Bug description

It is not possible to upload *.bak files

Steps to reproduce

1. Upload *.bak File
2. Try to Download it

Expected behavior

Bein able to download bak file again

Installation method

Official All-in-One appliance

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.0

Web server

Apache (supported)

Database engine version

MySQL

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

Updated from a minor version (ex. 22.2.3 to 22.2.4)

Are you using the Nextcloud Server Encryption module?

Encryption is Enabled

What user-backends are you using?

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

Configuration report

No CLI due Webspace

List of activated Apps

some but that does not matter due this also happend without any plugins installed - since bak files could never been uploaded

Nextcloud Signing status

No response

Nextcloud Logs

No response

Additional info

No response