Fix bug where user trying to load before user is ready

This only happens in some places, not on page loads.  But it breaks
javascript in weird ways as browser tries to render extra thigns.  This
manifested as breaking visual editor.

Change is based on https://www.mediawiki.org/wiki/Manual:$wgUser

roles/permissions/files/default-permissions.php

@@ -59,7 +59,7 @@ $wgGroupPermissions['LFCEvaluators']['teamcomment'] = true;
 $wgHooks['SpecialPage_initList'][] = function ( &$list ) {
   global $wgUser;
 
-  if(!$wgUser->isAllowed('view-special-log')) {
+  if($wgUser->isSafeToLoad() && !$wgUser->isAllowed('view-special-log')) {
     unset( $list['Log'] );
   }
   return true;