CommandAck parse failed Some required fields are missing

[hanmz]

Expected behavior

Ack message is normal.

Actual behavior

We occasionally encounter the following error when ack message. Once this error occurs, the client cannot recover. The phenomenon is that it will reconnect repeatedly, and the error will still be reported after reconnecting. In the end, it can only be restored by restarting the client.

Steps to reproduce

Currently unable to reproduce stably

System configuration

go sdk version: 0.12.1
broker version: 2.9.2