no memorization of subscribed folders

[punkyard]

Steps to reproduce

1. in a folder specs ( clicking . . . at the end of the line ) uncheck "Subscribed"
2. reload the page
3. the subscribed checkbox of that folder is checked again

Expected behavior

unsubscribe user to a folder

Actual behavior

no memorization of the "Subscribed" checkbox of mail folders

Mail app version

1,13,8

Mailserver or service

koraland.net

Operating system

ubuntu 22,04

PHP engine version

PHP 8.1

Web server

Apache (supported)

Database

MariaDB

Additional info