Wikimedia Bugzilla is closed!

Should be very trivial to fix, but I a) am off to bed, and b) have a corrupted working copy at the moment, so I'll post this here:

public function getUserPermissionsErrors( $action, $user, $doExpensiveQueries = true, $ignoreErrors = array() ) {
 	if( !StubObject::isRealObject( $user ) ) {
 	//Since StubObject is always used on globals, we can unstub $wgUser here and set $user = $wgUser
	global $wgUser;
 	$wgUser->_unstub( '', 5 );
 	$user = $wgUser;
 	}
...

This is wrong because it is testing for stub-ness on $user, but then unconditionally unstubbing $wgUser, assuming that they must be the same.  Why not just call $user->_unstub() ??  Needs investigating and patching.