Index: modules/menu/menu.admin.inc
===================================================================
--- modules/menu/menu.admin.inc	(revision 5353)
+++ modules/menu/menu.admin.inc	(working copy)
@@ -539,7 +539,7 @@
  * Submit function for adding or editing a custom menu.
  */
 function menu_edit_menu_submit($form, &$form_state) {
-  $menu = $form_state['values'];
+  $menu = &$form_state['values'];
   $path = 'admin/build/menu-customize/';
   if ($form['#insert']) {
     // Add 'menu-' to the menu name to help avoid name-space conflicts.