Ticket #8807: 8807.diff

wp-admin/js/common.dev.js

@@ -203 +203 @@
                 return true;
         } );
         $( 'thead :checkbox, tfoot :checkbox' ).click( function(e) {
-                var c = $(this).attr('checked'), toggle = e.shiftKey || toggleWithKeyboard;
                 if ( 'undefined' == typeof  toggleWithKeyboard)
                         toggleWithKeyboard = false;
+                var c = $(this).attr('checked'), toggle = e.shiftKey || toggleWithKeyboard;
 
                 $(this).parents( 'form:first' ).find( 'table tbody:visible').find( '.check-column :checkbox' ).attr( 'checked', function() {
                         if ( $(this).parents('tr').is(':hidden') )