Ok let's for a moment assume that it were possible to make an exact copy of someone. If we had two copies in two rooms. Then they should, if they are identical behave in an identical manner to identical stimuli. This would apply up to the point that they encounter each other. There reaction to each other would in theory be identical, but then they should adapt their behaviour to each other, so if they were brought into the same room and posed a question, they would behave identically to a shared experience. Pose them a puzzle and they should work together? If they are seperately exposed to stimuli at seperate times. Then it is safe to assume that while they would react the same way to the stimuli that their behaviour would not be synchronised since the stimuli were applied at seperate times and therefore when the stimuli is stopped and they return to an idle state, then they would not be behaving the same as each other at the same time. Is that at least at the heart of what the original question was trying to get at?