Index: date/date_handler_field_multiple.inc
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/date/date/date_handler_field_multiple.inc,v
retrieving revision 1.1.2.12
diff -u -r1.1.2.12 date_handler_field_multiple.inc
--- date/date_handler_field_multiple.inc	27 Feb 2009 14:48:34 -0000	1.1.2.12
+++ date/date_handler_field_multiple.inc	25 Apr 2010 15:10:05 -0000
@@ -40,7 +40,7 @@
     );
   }
     
-  function pre_render($values) {
+  function pre_render(&$values) {
     
     // If there are no values to render (displaying a summary, or query returned no results),
     // or if this is not a grouped field, do nothing specific.