And what happens if the teleporter doubles or triples the input matter? One could actually build a clone army like that.
Whichever clone has the transfered consciousness. But really, they both have the potential to be you depending on the circumstance, being: which clone have you jumped in.
It’s arguable, but it’s also arguable that they’re both you. Not too far-fetched when they say that there could be multiple dimentions of our reality. They’re guessing we each have a “twin” in any of those dimensions, effectively saying that two, three or a hundred of you is still you.