Using groups created through Workspace app in Nextcloud Talk bug

[robake1]

Describe the bug :

We are using the Workspace app to create group folders and user & workspace manager groups, we also reuse the user group from the Workspace folder when creating a Chat room in Nextcloud Talk related to the folder.

This works fine, but when we remove a user from the Workspace user group above it loses access to the folder without problem but stays in the chat room in Nextcloud Talk even though removed from the group.

If we instead add a user to a regular group in Nextcloud, add the group to a Chat room in Nextcloud Talk and later on remove the user from the group it works as expected, in other words the user can not access the Chat room in Nextcloud Talk.

So there is something strange when using the workspace group to assign rights in Nextcloud Talk.

To Reproduce :

Steps to reproduce this problem.

1. Create a Workspace with user and workspace manager groups
2. Add a user to the user group for the Workspace
3. Create a Chat room in Nextcloud Talk and add the user group from Workspace
4. Verify that the user from step 2 is visible in the Chat room in Nextcloud Talk
5. Remove the user from the Workspace group
6. Verify that the user is still in the Chat room in Nextcloud Talk

Expected behavior :

Expected behavior is that in step 6 under reproduce this problem the users is not available in the Chat room in Nextcloud Talk any more.

Server details :

Workspace app version: 3.2.2
Nextcloud version: 29.0.6 (Hub 8)
PHP Version: 8.1.24
Database: MariaDB

Client details :

OS: Windows 10
Browser: Chrome
Browser version: 129.0.6668.71
Device: Desktop