This extraReceive implementation helps this PushingDispatcher act as a transparent proxy.
This extraReceive implementation helps this PushingDispatcher act as a transparent proxy. It will send the message to the underlying kanaloa.queue.Queue
and the
sender will be set as the receiver of any results of the downstream kanaloa.handler.Handler. This receive will disable any acks, and in the event of an kanaloa.queue.Queue.EnqueueRejected
,
notify the original sender of the rejection.