Clearly, what Murray has predicted is happening:
By producing a fake map of the Iran/Iraq boundary, notably unfavourable to Iran, we can only harden the Iranian position.
Iranian officials are now clearly stating their anger about Britain’s claims and demanding some sort of apology. Britain being very unwilling to apologize or even get closed to apologizing, this situation is starting to get extremely complicated. I hope somebody in the high ranks will realize that before we end up in a deadlock.