Ticket #16909: 16909.5.patch

wp-admin/includes/dashboard.php

@@ -124 +124 @@
                 ob_start(); // hack - but the same hack wp-admin/widgets.php uses
                 wp_dashboard_trigger_widget_control( $_POST['widget_id'] );
                 ob_end_clean();
-                wp_redirect( remove_query_arg( 'edit' ) );
+                wp_redirect( admin_url( 'index.php' ) );
                 exit;
         }