Scenario is NOT fully filled in! "--playlist-reverse" not reversing...

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Checklist

• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2020.05.08
• 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
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Verbose log

Scenario is NOT fully filled in! "--playlist-reverse" not reversing...

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Respected Sir,
Due to severe headache for past days, I made an incomplete report. Very sorry for that.
The playlist IS itself reversed; the last one (item in the playlist) is on top and the first one is at the bottom. So, we use "--playlist-reverse" in that case. It is supposed download items 5 to 10 from bottom. But it was not. I feel, it's bug to be reported and that's it.
BTW, I am engineer of 29+ years experience (1982 to 2012) and trained 1300+ Graduate Engineers in that period. I WAS fully proficient in all versions Basic from Basica to Visual Basic, Fortron, Pascal, Lisp, C, C++, C# and Java from 1984/85 onwards.
Regards,