Nextcloud : second modification to database fails

On Android 13 with a database saved via Nextcloud, only the first modification to the database is successfully saved to Nextcloud. Any modification afterwards results in an error (database could not be saved). Behavior is observed when creating, deleting or moving an entry, for example. Modern unlocking is enabled.

This issue appeared today. The only things I did differently, or that I can remember modifying are:
- Database security setting changed via KeepasXC Desktop Client

The first time this behavior was observed:
- Trying and failing to delete multiple entries (second modification) after having copied them to a different folder (first modification)

Start by reproducing the failure on Android 13 with a database saved through Nextcloud, making consecutive create, delete, or move changes after enabling modern unlocking. Compare the first and second save attempts and confirm that each modification is successfully saved to Nextcloud.

Written by the indexing model from the issue text.