Originally Posted by
sharp5flat9
>> It is worth noting, that if you have a tight connection, QR will send a representative to the jet-bridge when you arrive, and they will escort you through.
They will do the same thing if they've offloaded you because you've missed your connection ... to hand you your replacement boarding pass

This is what happened me LHR-DOH-BKK in Doha and I made the flight comfortably. I don't remember going through security in Doha though.