message: Fix double request
diff: @@ -268,7 +268,7 @@ impl<T: Networker> RequestSM<T> {
  }
  RequestEvent::CustomSingleRequest(msg, req_id) => {
  state.networker.borrow_mut().process_event(Some(NetworkerEvent::SendOneRequest(msg.clone(), req_id.clone(), timeout)));
  - state.networker.borrow_mut().process_event(Some(NetworkerEvent::SendOneRequest(msg, req_id, timeout)));
  + state.networker.borrow_mut().process_event(Some(NetworkerEvent::Resend(req_id, timeout)));
  (RequestState::Single(state.into()), None)
  }
  RequestEvent::CustomFullRequest(msg, req_id, local_timeout, nodes_to_send) => {
  