When specifying resources for a different language in the resource file, it does not pick up the right one as per the locale

When specifying resources for a different language in the resource file, it does not pick up the right one as per the locale.

Update: This is still not working, it doesn't generate an entry in the qrc file at all for the locale specific file.

Update: This is caused by QLocale not understanding "se[_SE]"