The finished flag in QuestLogCache is only set to true when the server
sends isComplete=1 via GetQuestLogTitle. For quest 12843 ('They Took
Our Men!'), after using all Cold Iron Keys the objectives numerically
complete (5/5) but isComplete=1 may not fire until the player visits
the turn-in NPC.
Use numFulfilled == numRequired as the completion check instead, which
updates from GetQuestLogLeaderBoard immediately when each objective
fills. Added numRequired > 0 guard to avoid trivially matching
zero-required objectives.
Xurkon
25f2ece139