--- signup.module.orig	2008-11-16 20:27:22.000000000 -0600
+++ signup.module	2008-11-16 20:23:54.000000000 -0600
@@ -767,9 +767,9 @@
         db_query("DELETE FROM {signup_log} WHERE nid = %d", $node->nid);
         // No break, fall through and remove from {signup} too.
       case 0: // Disabled, but leave {signup_log} alone
-	if ($has_signup_record) {
+	  //if ($has_signup_record) {
           db_query("DELETE FROM {signup} WHERE nid = %d", $node->nid);
-	}
+	  //}
         break;
     }
   }