private static void OnBeginEditPivot(IntegrationArgs args)
        {
            GameObject   go       = args.GameObject;
            MeshDeformer deformer = go.GetComponentInParent <MeshDeformer>();

            if (deformer != null && deformer.GetType() == typeof(MeshDeformer))
            {
                if (!Rollback(deformer.gameObject))
                {
                    args.Cancel = true;
                }
            }
        }