trying to add a new sub hangs

[andrewarrow]

I'm on 3.1.1 and I can connect just fine to my server running

https://github.com/eclipse/paho.mqtt.golang

I see:

Client connected: mqttx_268677da
Client mqttx_268677da subscribed to topic 'test'

but the spinner on confirm never stops spinning?

[andrewarrow]

ohh i found my problem:

  suback := packets.NewControlPacket(packets.Suback).(*packets.SubackPacket)
  suback.MessageID = id
  suback.ReturnCodes = append(suback.ReturnCodes, 0x00)
  err := suback.Write(c)

wasn't sending that!