Steps to reproduce the issue

Create a multilingual site using the sample data and try to switch between the two languages in the front end using the language switcher module

Expected result

Site switches languages AND the main menu module for that language is displayed

Actual result

Site switches languages But the main menu module for the language you switch to is NOT displayed

System information (as much as possible)

Additional comments

Reverting the changes made by @bembelimen in

Sorry I dont understand the intention of the changes to tat file to comment further