239: Amendment: message exchange is not clear
-AmendmentConfirmed- not sure when it should be sent. -No response for RequestAmendmentConfirmation. Shouldn’t AmendmentConfirmed be a response message? -Failure/successes are missing. -At what point do we send the RequestAmendmentConfirmation? What’s the condition that triggers it? If you are just confirming a later version of the trade, do we really need this message pattern?