If there are multiple quests with the same name, it's possible they might point to the wrong finisher. This is because the quest finishers are done using a name-based lookup. This doesn't affect objectives, but ideally things should be changed to use the quest id.

Hopefully fixed after afd23aa

Definitely should be using the Quest ID, as there are TONS of quests with the same name in Vanilla, especially in neutral zones and end-game areas.

Yeah, only thing is unfortunately there's no way to get the quest ID in vanilla. I've come up with a hash system that uses the quest name, quest level, and quest objective text that should fix this, it should be implemented fairly soon.