--- uc_webform_pane/uc_webform_pane.module	Sun Apr 05 20:36:24 2015
+++ uc_webform_pane/uc_webform_pane.module	Fri Oct 30 15:00:15 2015
@@ -536,12 +536,11 @@
 function _uc_webform_pane_get_data($nid, $order_id) {
   if ($sid = _uc_webform_pane_get_sid($nid, $order_id)) {
     include_once DRUPAL_ROOT . '/' . drupal_get_path('module', 'webform') . "/includes/webform.submissions.inc";
     return webform_get_submission($nid, $sid);
   }
-  $empty = new stdClass();
-  return $empty;
+  return FALSE;
 }
 
 /**
  * Return list of webform nodes.
  */