Steps to reproduce:
- System language "Russian"
- Create user "Test" with language Portugal
- Open another browser, on chrome in incognito mode.
- in one browser login as "Admin" in another as "Test"
- As Admin, disable "Test" user.
- As "Test" user, press on any menu, and accept warning message. Login page in russian language.
- As Admin - enable "Test" user.
- As "Test" user press login button (without adding credentials).
Login page language changed to Portugal.