Core/SmartAI: do not target player's group for SMART_ACTION_CALL_AREAEXPLOREDOREVENTHAPPENS.

SMART_TARGET_INVOKER_PARTY or SMART_ACTION_CALL_GROUPEVENTHAPPENS should instead be used to achieve this functionality.

src/server/game/AI/SmartScripts/SmartScript.cpp

@@ -468,7 +468,7 @@ void SmartScript::ProcessAction(SmartScriptHolder& e, Unit* unit, uint32 var0, u
 
                 if (IsPlayer(*itr))
                 {
-                    (*itr)->ToPlayer()->GroupEventHappens(e.action.quest.quest, me);
+                    (*itr)->ToPlayer()->AreaExploredOrEventHappens(e.action.quest.quest);
 
                     TC_LOG_DEBUG("scripts.ai", "SmartScript::ProcessAction:: SMART_ACTION_CALL_AREAEXPLOREDOREVENTHAPPENS: Player guidLow %u credited quest %u",
                         (*itr)->GetGUID().GetCounter(), e.action.quest.quest);