--- a/index.cgi	Thu Jul 07 10:12:48 2011 +0200
+++ b/index.cgi	Thu Jul 07 10:34:22 2011 +0200
@@ -210,7 +210,8 @@
 		}
 	    });
 
-	    print redirect("$SELF/done.$r{uuid}/form");
+	    print redirect("$SELF/done.$r{uuid}/form?"
+		. "exists=" . _encrypt($r{exists}//0));
 	    exit 0;
 	}