[Bug]: "undefined restored" when restoring a previous version of a file

[ChristophWurst]

⚠️ 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

I restored a file with multiple versions to the most recent snapshot before the current version. The revert succeeded but the toast in the top right corner said "undefined restored".

According to VersionTab::handleRestore the code expects the version label to always be set

Steps to reproduce

1. Create a text file
2. Modify it a couple of times
3. Revert to a previous version

Expected behavior

Sensible toast message

Installation method

None

Operating system

None

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

No response

List of activated Apps

N/a

Nextcloud Signing status

No response

Nextcloud Logs

No response

Additional info

No response

[ChristophWurst]

The error happened in a directory shared with me. I am not the owner of the file.

[ChristophWurst]

yep

[lukaspavelka]

some issue here, did you resolve it ?

[juniorfux]

I get the same message, but I am the owner of the directory

[lukaspavelka]

i am also owner of directory and issue is still there :(