Index: includes/form.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/form.inc,v
retrieving revision 1.403
diff -u -r1.403 form.inc
--- includes/form.inc	22 Nov 2009 07:32:47 -0000	1.403
+++ includes/form.inc	22 Nov 2009 13:52:41 -0000
@@ -1937,8 +1937,7 @@
         $options = drupal_map_assoc(range(1900, 2050));
         break;
     }
-    $parents = $element['#parents'];
-    $parents[] = $type;
+
     $element[$type] = array(
       '#type' => 'select',
       '#value' => $element['#value'][$type],