Core/Entities: add extra use of UPDATETYPE_CREATE_OBJECT2

Port From (https://github.com/TrinityCore/TrinityCore/commit/044110d42366c3e91007add3a2aa4bd02cbe7d2c)

Source/Game/Entities/Object/WorldObject.cs

@@ -1719,6 +1719,7 @@ namespace Game.Entities
 
         public virtual bool HasQuest(uint questId) { return false; }
         public virtual bool HasInvolvedQuest(uint questId) { return false; }
+        public void SetIsNewObject(bool enable) { _isNewObject = enable; }
 
         public bool IsCreature() { return GetTypeId() == TypeId.Unit; }
         public bool IsPlayer() { return GetTypeId() == TypeId.Player; }
@@ -2352,6 +2353,7 @@ namespace Game.Entities
         protected TypeId ObjectTypeId { get; set; }
         protected CreateObjectBits m_updateFlag;
         ObjectGuid m_guid;
+        bool _isNewObject;
 
         public UpdateFieldHolder m_values;
         public ObjectFieldData m_objectData;

Source/Game/Maps/Map.cs

@@ -611,7 +611,9 @@ namespace Game.Maps
 
             //something, such as vehicle, needs to be update immediately
             //also, trigger needs to cast spell, if not update, cannot see visual
+            obj.SetIsNewObject(true);
             obj.UpdateObjectVisibilityOnCreate();
+            obj.SetIsNewObject(false);
             return true;
         }