/// <summary>
/// Initial state, reacts only on <see cref="Transfer"/> meesage.
/// </summary>
private void Waiting()
{
Command <Transfer>(ConcernsCurrentTransfer, start =>
{
replyTo = Sender;
// as mentioned since TransferSaga is created by an Account sending a money,
// fromId allways is based on the parent
var fromId = replyTo.AggregateId();
var toId = start.ToAccountNr;
Persist(new TransferStarted(start.Amount, fromId, toId), OnTransferStarted);
});
}