AlreadyDiscarded
class AlreadyDiscarded(val sender: DeviceAddress, val id: LogicalMessageId, val ackSent: Boolean) : ReceiveResult
A message the application discarded, sent again by sender (for example because the acknowledgement was lost). Its plaintext is not delivered again (it is no longer stored); it was acknowledged again (ackSent). The sender cannot tell this from AlreadyCommitted.