DislikedI have never played a Pin when it breaks on the opposite side of where it's pointing. That's just me though.
To answer your question, most people would consider a pin bar invalid after price broke the opposite side (nose). Personally, I agree with this thinking. Once price has gone in the opposite direction, it tells us that the pin bar wasnt a good one for whatever reason. Entering the break of it after prices comes back wouldnt be a good entry for me.
Hope that helps a little,
TomIgnored
See picture for example.
Any way this is just my 2 cents