? 903110.patch
Index: includes/pager.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/pager.inc,v
retrieving revision 1.81
diff -u -p -r1.81 pager.inc
--- includes/pager.inc	4 Aug 2010 03:46:16 -0000	1.81
+++ includes/pager.inc	5 Sep 2010 23:28:05 -0000
@@ -87,7 +87,7 @@ class PagerDefault extends SelectQueryEx
    * query.
    */
   protected function ensureElement() {
-    if (!empty($this->element)) {
+    if (!is_null($this->element)) {
       return;
     }