not best when use -f best

[PikuZheng]

Checklist

• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2020.03.08
• 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
• I've searched the bugtracker for similar bug reports including closed ones
• I've read bugs section in FAQ

Verbose log

C:\Users\Admin\Downloads>"youtube-dl (2).exe" -v -f best https://www.youtube.com
/watch?v=rmYXXuKNsPE
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', '-f', 'best', 'https://www.youtube.com/watch?v
=rmYXXuKNsPE']
[debug] Encodings: locale cp936, fs mbcs, out cp936, pref cp936
[debug] youtube-dl version 2020.03.08
[debug] Python version 3.4.4 (CPython) - Windows-2008ServerR2-6.1.7601-SP1
[debug] exe versions: none
[debug] Proxy map: {}
[youtube] rmYXXuKNsPE: Downloading webpage
[debug] Invoking downloader on 'https://r1---sn-30a7ynee.googlevideo.com/videopl
ayback?expire=1583947418&ei=OspoXo6OGJm0gAPO6quACQ&ip=210.1.226.102&id=o-AKKsgY3
K662Tp__cu89Qc3t7IR2uE8zEtDvc26cQ3-Rq&itag=22&source=youtube&requiressl=yes&mm=3
1%2C29&mn=sn-30a7ynee%2Csn-30a7rn76&ms=au%2Crdu&mv=m&mvi=0&pl=26&initcwndbps=537
500&vprv=1&mime=video%2Fmp4&ratebypass=yes&dur=222.749&lmt=1583248711073178&mt=1
583925708&fvip=1&fexp=23842630&c=WEB&txp=2316222&sparams=expire%2Cei%2Cip%2Cid%2
Citag%2Csource%2Crequiressl%2Cvprv%2Cmime%2Cratebypass%2Cdur%2Clmt&sig=ADKhkGMwR
AIgUGDknKEE0Pf3H0XzlOaxCJ9IgFRJk5RSa_9gG3jpdakCIBKn7wWOszkeat7kiIrE-a0DzVGlH8r01
KqcTeIFxTna&lsparams=mm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps&lsig=ABSNjpQwRQI
hAOhoCb1MAChPN9blQ4ErOwtrUI_nDiDHwUI5xMC--pdzAiAojlsu7-3x1OdKhFaYcfsKCXwC80Ao7P_
XwYcUzxDDKA%3D%3D'
[download] 8K - Awashima Jinja - Wakayama - 淡嶋神社-rmYXXuKNsPE.mp4 has already
 been downloaded
[download] 100% of 24.05MiB

Description

https://www.youtube.com/watch?v=rmYXXuKNsPE
It has 8k video which is the best but downloader not choose with -f best

[PikuZheng]

Ok that's my fail.