Core/Quests: Fixed an issue with self-completing quests.

(cherry picked from commit af87786)

Author: Subv

src/server/game/Handlers/QuestHandler.cpp

@@ -238,16 +238,13 @@ void WorldSession::HandleQuestgiverQueryQuestOpcode(WorldPacket& recvData)
 
     if (Quest const* quest = sObjectMgr->GetQuestTemplate(questId))
     {
-        // not sure here what should happen to quests with QUEST_FLAGS_AUTOCOMPLETE
-        // if this breaks them, add && object->GetTypeId() == TYPEID_ITEM to this check
-        // item-started quests never have that flag
         if (!_player->CanTakeQuest(quest, true))
             return;
 
         if (quest->IsAutoAccept() && _player->CanAddQuest(quest, true))
             _player->AddQuestAndCheckCompletion(quest, object);
 
-        if (quest->HasFlag(QUEST_FLAGS_AUTOCOMPLETE))
+        if (quest->IsAutoComplete())
             _player->PlayerTalkClass->SendQuestGiverRequestItems(quest, object->GetGUID(), _player->CanCompleteQuest(quest->GetQuestId()), true);
         else
             _player->PlayerTalkClass->SendQuestGiverQuestDetails(quest, object->GetGUID(), true);