def METHOD_NAME(self):
    """
    Respect setting field templates to an empty string.
    This should not be ignored but should make the corresponding task field
    an empty string.
    https://github.com/ralphbean/bugwarrior/issues/970
    """
    raw_values = {'templates': {}, 'project_template': ''}
    computed_values = schema.ServiceConfig().compute_templates(raw_values)
    self.assertEqual(computed_values['templates'], {'project': ''})