--- sites/all/modules/references/views/references_plugin_style.inc	Thu May 12 21:40:38 2011
+++ sites/all/modules/references/views/references_plugin_style.inc	Tue Jul 19 20:00:07 2011
@@ -36,6 +36,7 @@
         // Collect the rendered row, and the raw title value.
         $results[$values->{$id_field_alias}] = array(
           'rendered' => $rendered,
+          'group' => $title,
           'title' => $this->view->field[$title_field]->get_value($values),
         );