[youtube] Fails extracting video of a "My Mix" playlist

[romaincointepas]

• I've verified and I assure that I'm running youtube-dl 2017.03.24
• At least skimmed through README and most notably FAQ and BUGS sections
• Searched the bugtracker for similar issues including closed ones

What is the purpose of your issue?

• Bug report (encountered problems with youtube-dl)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
• Question
• Other

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$ ./youtube-dl -v --dump-json --no-playlist "https://www.youtube.com/watch?v=MuAGGZNfUkU&list=RDMM"
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'--dump-json', u'--no-playlist', u'https://www.youtube.com/watch?v=MuAGGZNfUkU&list=RDMM']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2017.03.24
[debug] Python version 2.7.10 - Darwin-16.4.0-x86_64-i386-64bit
[debug] exe versions: none
[debug] Proxy map: {}
WARNING: Falling back on generic information extractor.
{"display_id": "annotations_invideo?cap_hist=1\\u0026playlist_id=RDMM\\u0026video_id=MuAGGZNfUkU\\u0026client=1\\u0026ei=kM7UWNTbOsHf4gKRo7moBA", "extractor": "generic", "protocol": "https", "format": "0 - unknown", "requested_subtitles": null, "uploader": "www.youtube.com", "format_id": "0", "playlist_index": null, "playlist": null, "http_headers": {"Accept-Language": "en-us,en;q=0.5", "Accept-Encoding": "gzip, deflate", "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8", "User-Agent": "Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20150101 Firefox/47.0 (Chrome)", "Accept-Charset": "ISO-8859-1,utf-8;q=0.7,*;q=0.7", "Cookie": "YSC=8Nz98YaRkEs; VISITOR_INFO1_LIVE=abqg9qI7WNk; PREF=f1=50000000"}, "url": "https://www.youtube.com/annotations_invideo?cap_hist=1\\u0026playlist_id=RDMM\\u0026video_id=MuAGGZNfUkU\\u0026client=1\\u0026ei=kM7UWNTbOsHf4gKRo7moBA", "extractor_key": "Generic", "title": "Hans Zimmer - Time", "id": "annotations_invideo?cap_hist=1\\u0026playlist_id=RDMM\\u0026video_id=MuAGGZNfUkU\\u0026client=1\\u0026ei=kM7UWNTbOsHf4gKRo7moBA", "ext": "unknown_video", "webpage_url": "https://www.youtube.com/watch?v=MuAGGZNfUkU&list=RDMM", "_filename": "Hans Zimmer - Time-annotations_invideocap_hist=1_u0026playlist_id=RDMM_u0026video_id=MuAGGZNfUkU_u0026client=1_u0026ei=kM7UWNTbOsHf4gKRo7moBA.unknown_video", "fulltitle": "Hans Zimmer - Time", "age_limit": 0, "webpage_url_basename": "watch"}

Extracted (single URL) is https://www.youtube.com/annotations_invideo...

Works perfectly when trying with https://www.youtube.com/watch?v=MuAGGZNfUkU instead of https://www.youtube.com/watch?v=MuAGGZNfUkU&list=RDMM.