? uc_signup.patch
Index: uc_signup.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/uc_signup/uc_signup.module,v
retrieving revision 1.59
diff -u -p -r1.59 uc_signup.module
--- uc_signup.module	4 Jul 2010 04:02:37 -0000	1.59
+++ uc_signup.module	8 Jul 2010 19:30:23 -0000
@@ -646,7 +646,7 @@ function uc_signup_order($op, &$arg1, $a
       }
       if (!empty($events_to_signup)) {
         //Clear any existing placeholder signups before proceeding.
-        uc_signup_cancel_temporary_signups($order);
+        uc_signup_cancel_temporary_signups($arg1);
         foreach ($_SESSION['uc_signup']['nids'] as $nid => $attendees) {
           foreach ($attendees as $key => $mail) {
             $account = user_load(array('mail' => $mail));