What if you and the non biological copy both wake up? Which one is "you"? I'm obviously going to care more about the one that I appear to actually be, and won't

What if you and the non biological copy both wake up? Which one is "you"? I'm obviously going to care more about the one that I appear to actually be, and won't be happy if me copy decides to kill me. The idea of a continuous self is probably an illusion, but if your body dies that illusion does too. Your copy just lives its own version of that illusion.