While reviewing PULL-313 (aka,
MDL-25778) it has been detected that:
isn't used and applied in the next scripts:
and it seems that only manual creation takes it into account (user/edit.php).
So perhaps we should check what happens with "country" and also other defaults (department, institution...and so on) in all those scripts.
PS: Note I haven't looked at it exhaustively at all, just looked around the newly introduced "$CFG->citydefault" code and didn't find it's country counterpart.