Group members not updated

[susnux]

We use circles with the collectives app, now I noticed after updating to 24.0.5 that some users can not see their collectives or shared files if they are members of a group which is the member of the circle.

E.g. our setup is similar to:

• LDAP groups:
  • member
  • events
• Collectives (= circles)
  • event team -> owner: user admin, members: group events
  • help -> owner: user admin, members: group member

An user who is member of member and events can only see shares of circles event team but not of help.
(This is a bit more complex as there are more circle <-> group mappings, and some work but some do not.)

I am not sure what information I can provide to track this down, it first appeared when updating to 24.0.5 from 24.0.3.

[susnux]

The only difference between circles that work and the ones that do not work is that the API response says:
initiator: null
for the not working ones.

Moreover I noticed that oc_circles_member is not in sync with the group members.
Meaning there are users missing added to a group (using LDAP) as well as deleted members still listed which were removed using occ user:delete.

[mejo-]

Closing as duplicate of #1249 (because that issue has more discussion).