Wikimedia Bugzilla is closed!

cascade was passed as a constant, but it is expected to be a reference.
includes/Title.php line 2267	

Untested  Patch :
@@ -2263,7 +2263,8 @@ public function updateTitleProtection( $create_perm, $reason, $expiry ) {
     $expiry = array( 'create' => $expiry );
     $page = WikiPage::factory( $this );
-    $status = $page->doUpdateRestrictions( $limit, $expiry, false, $reason, $wgUser );
+    $cascade=false;// passed by reference to doUpdateRestrictions, dont pass constants
+    $status = $page->doUpdateRestrictions( $limit, $expiry, $cascade, $reason, $wgUser );
     return $status->isOK();

   }
also here :
https://github.com/h4ck3rm1k3/mediawiki/commit/5cd7bccdb53389c8da58738924f10f9dc9465cb9