No longer downloads unlisted videos when downloading from channel link

[effectively0]

Checklist

• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2019.11.22
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar bug reports including closed ones
• I've read bugs section in FAQ

Verbose log

PASTE VERBOSE LOG HERE

Description

WRITE DESCRIPTION HERE
I recall the software used to download all the unlisted videos of a channel if the channel link was parsed to youtube-dl. Now it only counts the publicly listed videos in the download list.
Unlisted videos can still be downloaded with their individual links, but youtube-dl no longer has the ability to find unlisted videos.

[effectively0]

Why was this tagged as 'incomplete' @dstftw?