*Fix a crash.

--HG--
branch : trunk

src/game/Object.cpp

@@ -1075,15 +1075,7 @@ void WorldObject::SetWorldObject(bool on)
     if(!IsInWorld())
         return;
     
-    if(GetTypeId() == TYPEID_UNIT)
-    {
-        if(!((Creature*)this)->isPet())
-            GetMap()->SwitchGridContainers((Creature*)this, on);
-    }
-    /*else if(GetTypeId() == TYPEID_DYNAMICOBJECT)
-    {
-        GetMap()->SwitchGridContainers((DynamicObject*)this, on);
-    }*/    
+    GetMap()->AddObjectToSwitchList(this, on); 
 }
 
 void WorldObject::setActive( bool on )