Prevent shared links from disappearing when moving data into group folder

I hope I didn't miss an existing issue on the topic, but at least couldn't find it with some search:

We used to have user folders shared with the team and would like to migrate all those folders and files into group folders.

However, when I move a user folder (that was already shared with group X) into a group folder (of group X), I would prefer to unshare the folder as such with the group, as they now anyway have access. (I know it doesn't actually create a real problems to keep it shared, it's just for the sake of cleanliness and less clutter in the share preferences.)

Unfortunately, unsharing invalidates all shared links that other group members have already created. It seems to me that desirable behaviour would be not to invalidate shared links if they were created by a user that still has access and sharing rights through the group folder feature.

Of course, I am also aware that this might not be possible/feasible to do within the group folder app, but only in the general server. As I can't judge that for sure, sorry in advance if I'm posting to the wrong repo. ;)

Start by tracing how moving a user folder into a group folder and then unsharing it affects existing shared links. Determine whether the behavior belongs in groupfolders or the general server, and identify the relevant implementation and tests before defining completion as preserving links created by users who retain access and sharing rights.