QQ: fix a bug with discards using a consumer_id() #12442
Merged
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Fixes a pattern matching bug for discards that come in after a consumer has been cancelled. Because the rabbit_fifo_client does not keep the integer consumer key after cancellation, late acks, returns, and discards use the full {CTag, Pid} consumer id version.
As this is a state machine change the machine version has been increased to 5.
The same bug is present for the
modify
command also however as AMQP does not allow late settlements we don't have to make this fix conditional on the machine version as it cannot happen.Fixes: #12424