def delete(self, user=None, permanent=False):
        if permanent:
            return super(MTModel, self).delete()
        self._collector.delete(user)
Recurse to give us a merge-order list of children.
dataset/ETHPy150Open mozilla/moztrap/moztrap/model/mtmodel.py/MTModel.delete--crossover with--dataset/ETHPy150Open buildingenergy/buildingenergy-platform/seed/models.py/BuildingSnapshot.child_tree