Duplicate boarding position
So before you ask, I did do a search and the only thing I found was a thread from 2016. So I had to do a short notice trip DAL-DCA and because it was short notice I booked BS. Checked in +24 on the outbound and got position A2, cool. Yesterday I checked in +24 and five minutes because I was landing at DCA about that time, got A1. Very cool, first time ever. But when I boarded this morning there was a lady standing at the front of the line like she owned it. I stepped up beside her and hung out, notice on her paper boarding pass that she was also A1. Guess I was not that special but was certainly not going to say anything. Given there were a ton of pre boards I knew I was not going to get my usual preferred bulkhead seat so whatever. However it begs the question, how in the everything computerized systems are their duplicate boarding positions? Not that I care that much about A1 vs A2 but I am a computer guy and wonder......