SVGBezierPath's SVGRepresentation returns null data points

[dsowsy]

<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="300" height="195">
  <path d="M(null),(null)C(null),(null),(null),(null),(null),(null)C(null),(null),(null),(null),(null),(null)C(null),(null),(null),(null),(null),(null)C(null),(null),(null),(null),(null),(null)C(null),(null),(null),(null),(null),(null)L(null),(null)L(null),(null)L(null),(null)Z"/>

</svg>

I've verified the values path.CGPath to be

[(0.0, 67.0), (0.0, 67.0), (34.0, 1.92835e-08), (60.0, -2.22045e-16), (86.0, -1.92835e-08), (90.0, 116.0), (120.0, 116.0), (150.0, 116.0), (156.0, 67.0), (180.0, 67.0), (204.0, 67.0), (221.0, 116.0), (240.0, 116.0), (259.0, 116.0), (300.0, 67.0), (300.0, 67.0), (300.0, 195.0), (0.0, 195.0), (0.0, 67.0)]