Core/GameObject: Update spawn conditions when new ControlZone event is triggered

Port From (https://github.com/TrinityCore/TrinityCore/commit/0aa61e93419612ef34c73ae82bb95bdcf616d484)

Source/Game/Entities/GameObject/GameObject.cs

@@ -4713,6 +4713,7 @@ namespace Game.Entities
             if (eventId <= 0)
                 return;
 
+            _owner.GetMap().UpdateSpawnGroupConditions();
             GameEvents.Trigger(eventId, _owner, null);
         }