[Youtube livestream] <channelID>/live is interpreted as a channel playlist

[Bangaio65]

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This started happening today, I use -g to get the m3u8 url as input for ffmpeg and I noticed my script started hanging. It turns out youtube-dl attempts to download all the videos in the channel instead of the livestream.

>youtube-dl -v -F "https://www.youtube.com/channel/UCR9120YBAqMfntqgRTKmkjQ/live"
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', '-F', 'https://www.youtube.com/channel/UCR9120YBAqMfntqgRTKmkjQ/live']
[debug] Encodings: locale cp1252, fs mbcs, out cp437, pref cp1252
[debug] youtube-dl version 2018.01.18
[debug] Python version 3.4.4 (CPython) - Windows-7-6.1.7601-SP1
[debug] exe versions: ffmpeg N-89788-g1eb7c1d49d, ffprobe N-89788-g1eb7c1d49d
[debug] Proxy map: {}
[youtube:live] UCR9120YBAqMfntqgRTKmkjQ: Downloading webpage
[youtube:channel] UCR9120YBAqMfntqgRTKmkjQ: Downloading channel page
[youtube:playlist] UUR9120YBAqMfntqgRTKmkjQ: Downloading webpage
[download] Downloading playlist: Uploads from A24
[youtube:playlist] playlist Uploads from A24: Downloading 61 videos
[download] Downloading video 1 of 61
[youtube] 6bncANEZTz4: Downloading webpage
[youtube] 6bncANEZTz4: Downloading video info webpage
[youtube] 6bncANEZTz4: Extracting video information
[info] Available formats for 6bncANEZTz4:

[...]

youtube-dl -v -F "https://www.youtube.com/watch?v=kLlI76mNygk" (same link but using video ID instead of /live) works as expected.

[baco]

Same here! Same version, same issue.