public override void ResolveReferencesSpecial()
        {
            base.ResolveReferencesSpecial();

            if (linkDef == null)
            {
                linkDef = Transformation.Def;
            }
        }
        public void ResolveReferencesSpecial(TransformationDef parentDef)
        {
            Def = parentDef;

            foreach (TransformationCondition condition in conditions)
            {
                condition.ResolveReferencesSpecial(this);
            }

            foreach (TransformationAction action in actions)
            {
                action.ResolveReferencesSpecial(this);
            }
        }