Index: includes/menu.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/menu.inc,v
retrieving revision 1.362
diff -u -p -r1.362 menu.inc
--- includes/menu.inc	11 Nov 2009 08:28:50 -0000	1.362
+++ includes/menu.inc	27 Nov 2009 18:46:27 -0000
@@ -2161,7 +2161,33 @@ function menu_link_load($mlid) {
     $query = db_select('menu_links', 'ml');
     $query->leftJoin('menu_router', 'm', 'm.path = ml.router_path');
     $query->fields('ml');
-    $query->fields('m');
+    // SELECT all the columns from {menu_router} except weight, which
+    // should be taken from {menu_links}.
+    $query->fields('m', array(
+      'path',
+      'load_functions',
+      'to_arg_functions',
+      'access_callback',
+      'access_arguments',
+      'page_callback',
+      'page_arguments',
+      'delivery_callback',
+      'fit',
+      'number_parts',
+      'context',
+      'tab_parent',
+      'tab_root',
+      'title',
+      'title_callback',
+      'title_arguments',
+      'theme_callback',
+      'theme_arguments',
+      'type',
+      'block_callback',
+      'description',
+      'position',
+      'file',
+    ));
     $query->condition('ml.mlid', $mlid);
     if ($item = $query->execute()->fetchAssoc()) {
       _menu_link_translate($item);