Use the secondary service instead of the original URL when the first service returns nothing

Hi

If the primary service failed to deliver a shorten url, the module try to use the secondary service.

The secondary service is used only if the return of the first is null (shorten.module : l.152). But if the first service isn't found, the module return the original url, and so the secondary service can not be used.

I think the module should test if the url is null and not egal to the original :

   //If the primary service fails or return the original url, try the secondary service.
   if (!$url || $url == $original) {
    $service = variable_get('shorten_service_backup', 'TinyURL');
    if (isset($services[$service])) {
      $url = _shorten_get_url($original, $services[$service]);
    }
    //If the secondary service fails, use the original URL.
    if (!$url) {
      $url = $original;
    }
  }

Best