Group shares not working after upgrade to Nextcloud 28

[andy-held]

Since the update to 28.0.0, users created via OIDC get associated with the correct groups, but do not get access to group shares. When the group is unassigned and reassigned through the Nextcloud webinterface, the appropriate shares appear.

[Zapfmeister]

I have the same issue. Is this an issue of this plugin, or a nextcloud issue?

[sirkrypt0]

It's a Nextcloud issue and I created the one above (nextcloud/server#47712) with some more details on the actual bug.

TL;DR: users are granted access to the shares, but they have to accept them manually by visiting the pending shares (https://nextcloud.example.com/apps/files/pendingshares), even though automatic acceptance is configured (as it is by default).