TypeError when downloading BBC iPlayer video

[l0b0]

$ youtube-dl 'http://www.bbc.co.uk/iplayer/episode/b062mfw7/artsnight-series-2-4-samira-ahmed'
[bbc.co.uk] b062mfw7: Downloading video page
[bbc.co.uk] b062mfv7: Downloading media selection XML
Traceback (most recent call last):
  File "/usr/bin/youtube-dl", line 9, in <module>
    load_entry_point('youtube-dl==2015.7.21', 'console_scripts', 'youtube-dl')()
  File "/usr/lib/python3.4/site-packages/youtube_dl/__init__.py", line 410, in main
    _real_main(argv)
  File "/usr/lib/python3.4/site-packages/youtube_dl/__init__.py", line 400, in _real_main
    retcode = ydl.download(all_urls)
  File "/usr/lib/python3.4/site-packages/youtube_dl/YoutubeDL.py", line 1503, in download
    url, force_generic_extractor=self.params.get('force_generic_extractor', False))
  File "/usr/lib/python3.4/site-packages/youtube_dl/YoutubeDL.py", line 656, in extract_info
    ie_result = ie.extract(url)
  File "/usr/lib/python3.4/site-packages/youtube_dl/extractor/common.py", line 275, in extract
    return self._real_extract(url)
  File "/usr/lib/python3.4/site-packages/youtube_dl/extractor/bbccouk.py", line 361, in _real_extract
    formats, subtitles = self._download_media_selector(programme_id)
  File "/usr/lib/python3.4/site-packages/youtube_dl/extractor/bbccouk.py", line 281, in _download_media_selector
    formats.extend(self._extract_video(media, programme_id))
  File "/usr/lib/python3.4/site-packages/youtube_dl/extractor/bbccouk.py", line 218, in _extract_video
    file_size = int(media.get('media_file_size'))
TypeError: int() argument must be a string, a bytes-like object or a number, not 'NoneType'
$ youtube-dl --version
2015.07.21

[l0b0]

Found issue #6386; closing.