def intersection(self, other):
        return self._transform(transformations.intersection_t(other))
Check that plugins and placeholders get correctly deleted when we delete
dataset/ETHPy150Open EntilZha/PyFunctional/functional/pipeline.py/Sequence.intersection--crossover with--dataset/ETHPy150Open divio/django-cms/cms/tests/test_page.py/PagesTestCase.test_delete_with_plugins