Core/SmartScripts: fix escort quest group-complete

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

@@ -477,7 +477,8 @@ void SmartScript::ProcessAction(SmartScriptHolder& e, Unit* unit, uint32 var0, u
 
                 if (IsPlayer(*itr))
                 {
-                    (*itr)->ToPlayer()->AreaExploredOrEventHappens(e.action.quest.quest);
+                    (*itr)->ToPlayer()->GroupEventHappens(e.action.quest.quest, me);
+
                     TC_LOG_DEBUG("scripts.ai", "SmartScript::ProcessAction:: SMART_ACTION_CALL_AREAEXPLOREDOREVENTHAPPENS: Player guidLow %u credited quest %u",
                         (*itr)->GetGUIDLow(), e.action.quest.quest);
                 }