Tested with Swedish as the language. If I use Swedish as the language during the install, and also as the default language for the system, firstboot appearantly uses the wrong keyboard layout when run and when displaying the add user screen. Because later when I try to login using that account, both in gdm and on the console, the password I had created is incorrect, since key poisitons have changed.
*** This bug has been marked as a duplicate of 100686 ***
Changed to 'CLOSED' state since 'RESOLVED' has been deprecated.