'Fail silently when the list index is out of range.'

@setup({'list-index03': '{{    var.1    }}'})
def test_list_index03(self):

    output = self.engine.render_to_string('list-index03', {'var': None})
    if self.engine.string_if_invalid:
        self.assertEqual(output, 'INVALID')
    else:
        self.assertEqual(output, '')
