A FlyerTalk Posting Legend
Join Date: Sep 2012
Location: SFO
Programs: AC SE MM, BA Gold, SQ Silver, Bonvoy Tit LTG, Hyatt Glob, HH Diamond
Posts: 44,342
Why do you think this has anything to do with hours or deadheading crew?
The flight is overbooked, though I'm not sure why or how anyone in J would be affected by that.
As for your seats being "magically available", what do you think would happen if it was booked 26/24 and then you moved off the flight? Your seats would be unoccupied and it would be booked 24/24. That is probably the only thing in your post that has a very obvious answer.