def METHOD_NAME(self):
    """Check that not-modified objects are ignored"""
    tables_with_modified = [
        Body,
        Organization,
        Person,
        Meeting,
        Paper,
        File,
    ]  # must have modified and File for #41
    newer_now = timezone.now()
    importer = Importer(self.loader, force_singlethread=True)
    importer.update(self.body_id)
    for table in tables_with_modified:
        logger.debug(table.__name__)
        self.assertLess(table.objects.first().modified, newer_now)