[C2] Cannot disable languages (PROBABLY A BUG)

[pvi-github]

Describe
Hello, in administration -> main-> languages trying to disable languages (one or many or all no matter) results in : nothing.
Did i miss something ?

To Reproduce
Steps to reproduce the behaviour:

1. Go to '/main/admin/languages.php' or click on Administration -> Administration -> Languages (in Platform Management block)
2. Either :
   1. click on '[Disable all languages except the platform default]'
   2. click on one of the switches to disable languages
   3. select one or several languages then use the action select box down the list to make them unavailable
3. Refresh the page (F5)
4. See the languages are all enabled.

Expected behaviour
Disabled languages.should remain disabled (and enabling them back should also be possible.

Screenshots
(No need)

Desktop (please complete the following information):

• OS: Debian Linux 13
• Browser: Firefox 146.0.1

**Server

• OS: Debian 12
• Version of Chamilo: Chamilo 2 Beta 1
• Version of PHP: 8.2.29 (from deb12 installed with apt)

Additional context

• Chamilo database version is 2.0.0 in the code.
• Last migration file in src/CoreBundle/Migrations/Schema/V200/ is Version20250709182000.php

[pvi-github]

Edited title to reflect that it's a Chamilo 2.0 topic.