=== modified file 'includes/menu.inc'
--- includes/menu.inc	
+++ includes/menu.inc	
@@ -1210,6 +1210,16 @@ function _menu_append_contextual_items()
       $new_items[$temp_mid] = $item;
       $temp_mid--;
     }
+    else {
+      $mid = $_menu['path index'][$item['path']];
+      if ($_menu['items'][$mid]['type'] & MENU_CREATED_BY_ADMIN) {
+        $_menu['items'][$mid]['access'] = $item['access'];
+        $_menu['items'][$mid]['callback'] = $item['callback'];
+        if (isset($_menu['items'][$mid]['callback arguments'])) {
+          _menu['items'][$mid]['callback arguments'] = $item['callback arguments'];
+        }
+      }
+    }
   }
 
   // Establish parent-child relationships.