Natural response would be to just say, “oh, I thought your name was [insert prior name]?” - this based on experience, not worth the risk. Beyond that, best to a

Natural response would be to just say, “oh, I thought your name was [insert prior name]?” - this based on experience, not worth the risk. Beyond that, best to avoid situations if it’s predictably going to happen again, since only matter of time before they slip, decide to mention you prior name behind your back, etc.