Problem when generating thumbnails

Hi,

I got issue when I add a new Flickr media. The thumbnail is not generated.
Following the Youtube Media module, in the file :
includes/MediaFlickrStreamWrapper.inc
there should be something like that :

$response = drupal_http_request($this->getOriginalThumbnailPath());
      if (!isset($response->error)) {
        file_unmanaged_save_data($response->data, $local_path, TRUE);
      }
      else {
        @copy($this->getOriginalThumbnailPath(), $local_path);
      }

instead of

@copy($this->getOriginalThumbnailPath(), $local_path);

I propose the patch attached to be commited.
(see same issue for Dailymotion media module : https://drupal.org/node/2064329)
(see same issue for Vimeo media module : https://drupal.org/node/2064831)