If the opponent still had time on their timer, then why not? But if there was no timer, then they should immediately pass their turn.
No, because one of the sides gained an advantage in the form of, for example, studying the map by viewing the terrain for 9 minutes.
And no, because I don't allow myself such tricks, so I would like to see the official, firm position of the AC, and if possible, I will use it too.
In fact, the turn that has already taken place is changed in this situation (in my opinion).
