Sharing restriction (advanced permissions) breaks loading of documents in android app

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Steps to reproduce

1. Prerequisites: admin is the nextcloud administrator. admin and user1 are users in the group "home".
2. admin creates a groupfolder named "groupfolder-home". Group "home" is added as group (write, share, delete). Advanced permissions are granted for admin.
3. admin adds user1 in the sharing sidebar of "groupfolder-home" and restricts/disables sharing for user1.
4. admin adds a new textfile (newfile.md) to groupfoler-home (could also be a new nextcloud office document).
5. user1 openens nextcloud on android and opens newfile.md

Expected behaviour

newfile.md should just be opened in nextcloud android app.

Actual behaviour

newfile.md cannot be opened in nextcloud android app (endless spinner... text appears that loading takes ages). Same happens for e.g. nextcloud office documents.
Opening newfile.md still works in nextcloud webif.
Opening newfile.md still works, if sharing permissions are generally restricted for the group in the general admin settings of groupfolders.

Server configuration

Nextcloud version: 23.0.0

Group folders version: 11.1.2

Nextcloud android version: 3.18.1

No source file or test is named. Start by reproducing the groupfolders advanced-permissions setup and opening newfile.md in the Android app, then compare it with the working web interface. Done means Markdown and Nextcloud Office documents open normally for a user whose sharing is restricted, without an endless spinner.