Steps to reproduce

1. Select Inbox folder (first picture below) : all messages are displayed
2. Select Favorites folder (second picture below) : all messages are displayed too. Only starred messages should be displayed

Expected behavior

Favorites folder should display only starred messages

Actual behavior

Messages are not filtered.

Mail app version

5.3.1

Nextcloud version

31.0.8

Mailserver or service

several (mailo, OVH)

Operating system

NC AIO on Synology NAS

PHP engine version

PHP 8.3

Nextcloud memory caching

No response

Web server

Apache (supported)

Database

PostgreSQL

Additional info

Detected with Mail 5.3.1.
Also affects Mail 5.3.2