def clear_deferred_loading(self):
        self.deferred_loading = (set(), True)
DownloadMixin.not_modified_response returns HttpResponseNotModified.
dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/Django-1.6.10/django/db/models/sql/query.py/Query.clear_deferred_loading--crossover with--dataset/ETHPy150Open benoitbryon/django-downloadview/tests/views.py/DownloadMixinTestCase.test_not_modified_response