Ticket #13525: 13525-delete-double-ays.diff

wp-admin/js/nav-menu.dev.js

@@ -552 +552 @@
                         $('input.menu-save').click(function(){
                                 window.onbeforeunload = null;
                         });
+                        $('.menu-delete').click(function(){
+                                window.onbeforeunload = null;
+                        });
                 },
 
                 registerChange : function() {