I've been playing around with understanding the Order checkout state machine, and I can't quite wrap my head around something. From what I've seen, if an order is in the "confirm" state, there's a strange bit of seeming inconsistency. If I update the user's address while in this state, it will send the cart back into the "delivery" state, which is kind of what I'd expect. But if I update the contents of the cart, ie add new line items, it leaves the cart in confirm.