Luckily for me it's a very uncommon name, I only ever met one other person with it (it was the first time for him too).
It's sort version, however, is also short for a relatively common feminine name, so the few times I've heard that and unintentionally turned my head the looks I got were more like "wtf, that's not your name!".
But my case is different anyway, you don't need me responding to any name to out me. I just think it's unnecessary for people to know what name I used to go by.
Kind of related: a very dear friend of mine was slightly upset when I told her my new name because it wasn't that name with the same short form as my dead name. She wanted to be able to call me the same as she used to, and suggested if I wanted to be called Promethea I should make it my middle name.