'Test a code path missed by the above: passing an old-style location as parent but no
new location for the child'

@ddt.data(ModuleStoreEnum.Type.mongo)
def test_create_item_from_parent_location(self, default_ms):

    self.initdb(default_ms)
    self.store.create_child(self.user_id, self.course_locations[self.MONGO_COURSEID], 'problem', block_id='orphan')
    orphans = self.store.get_orphans(self.course_locations[self.MONGO_COURSEID].course_key)
    self.assertEqual(len(orphans), 0, 'unexpected    orphans:    {}'.format(orphans))
