I believe that PvP fites now accumulate "behind the scenes" when your stone is intact, just as they would if your stone was broken, and become available when you break the stone. In other words, if you do a 3-day run with an intact stone, you'll have 10 (starting) + 10 (rollover) + 10 (rollover) = 30 fites, plus any other fites earned during that time, when you break the stone. (Still capping at 100 during each rollover.)January 03 - PvP Fights remaining now reset to 10 when you ascend, instead of when you break your stone. Congrats, premature PvP consumable ingesters.
It looks like Mafia incorrectly assumes that fites==10 when breaking the stone. It should probably check the actual count at that point.