whenCommitted
fun whenCommitted(command: Command<*>, version: Int = 1, aggregateId: String = command.ref.id, duplicate: Boolean = false, commandType: String = commandTypeOf(command), expect: ProcessorExpectations.() -> Unit = {})
Hands the success receipt of command, one this handling derived, to the saga's @OnCommitted handler of it, as ProcessorSpec.whenCommitted does: the specification goes on from this handling.