update

im/tg/tg.go

@@ -208,9 +208,14 @@ func (sender *Sender) Reply(msgs ...interface{}) (int, error) {
 			b.Delete(rt)
 		}
 	}
+	if rt != nil && sender.reply == nil {
 		sender.reply = rt
+	}
+	if sender.reply != nil {
 		return sender.reply.ID, err
 	}
+	return 0, nil
+}
 
 func (sender *Sender) Delete() error {
 	if sender.deleted {