I imagine that it probably went like this "what about identical twins?" / "Don't worry about that for now, we'll solve for it before we go live, but it's not in

I imagine that it probably went like this "what about identical twins?" / "Don't worry about that for now, we'll solve for it before we go live, but it's not in this milestone". Then someone pulls rank and decides the product is "good enough, we can't wait for all bugs to be fixed" and gets it deployed.