message: Fixed a possible crashing bug
diff: @@ -314,6 +314,9 @@ void AvatarService::onGetAvatarSuccess(const QImage& img)
  void AvatarService::onGetAvatarFailed(const ApiError& error)
  {
  + if (!get_avatar_req_) {
  + return;
  + }
  const QString email = get_avatar_req_->email();
  get_avatar_req_->deleteLater();
  get_avatar_req_ = NULL;
  