GamerDVR.com incorrect URL decoding

[xenova]

Checklist

• I'm reporting a broken site support
• I've verified that I'm running youtube-dl version 2019.11.28
• 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 issues including closed ones

Verbose log

C:\Users\xxxxxx>youtube-dl "https://gamerdvr.com/gamer/twin-howler/video/82308233" -v
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['https://gamerdvr.com/gamer/twin-howler/video/82308233', '-v']
[debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252
[debug] youtube-dl version 2019.11.28
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.17763
[debug] exe versions: ffmpeg N-94059-g268ab17c51, ffprobe N-94059-g268ab17c51
[debug] Proxy map: {}
[generic] 82308233: Requesting header
WARNING: Falling back on generic information extractor.
[generic] 82308233: Downloading webpage
[generic] 82308233: Extracting information
[download] Downloading playlist: Click here to watch, tag friends, comment on, download, or share this video
[generic] playlist Click here to watch, tag friends, comment on, download, or share this video: Collected 1 video ids (downloading 1 of them)
[download] Downloading video 1 of 1
[debug] Default format spec: bestvideo+bestaudio/best
[debug] Invoking downloader on 'https://gameclipscontent-d2017.xboxlive.com/xuid-2535472745162130-private/62f505f8-12a6-4e46-8748-153166760e4d.MP4?sv=2015-12-11&sr=b&si=DefaultAccess&sig=Lkdf98qSZDkveH0hbaYcMHu2L9kgBnSR4wnev/F4UOM=&__gda__=1574979692_91cabe00ab40eed0d1d67d637ff09082'
ERROR: unable to download video data: HTTP Error 403: Forbidden
Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpwy0zjfmc\build\youtube_dl\YoutubeDL.py", line 1925, in process_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpwy0zjfmc\build\youtube_dl\YoutubeDL.py", line 1864, in dl
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpwy0zjfmc\build\youtube_dl\downloader\common.py", line 366, in download
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpwy0zjfmc\build\youtube_dl\downloader\http.py", line 341, in real_download
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpwy0zjfmc\build\youtube_dl\downloader\http.py", line 109, in establish_connection
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpwy0zjfmc\build\youtube_dl\YoutubeDL.py", line 2237, in urlopen
  File "C:\Python\Python34\lib\urllib\request.py", line 470, in open
  File "C:\Python\Python34\lib\urllib\request.py", line 580, in http_response
  File "C:\Python\Python34\lib\urllib\request.py", line 508, in error
  File "C:\Python\Python34\lib\urllib\request.py", line 442, in _call_chain
  File "C:\Python\Python34\lib\urllib\request.py", line 588, in http_error_default
urllib.error.HTTPError: HTTP Error 403: Forbidden

Description

Explanation:
When attempting to download a video from GamerDVR.com, youtube-dl returns a 403 error.

Examples: (Even although all videos do this)

• https://gamerdvr.com/gamer/twin-howler/video/82308233
• https://gamerdvr.com/gamer/itztheday/video/82046062

Solution:
Youtube-dl decodes some special characters in the retrieved URL, however, they should not be decoded.
The URL which should be retrieved:
https://gameclipscontent-d2017.xboxlive.com/xuid-2535472745162130-private/62f505f8-12a6-4e46-8748-153166760e4d.MP4?sv=2015-12-11&sr=b&si=DefaultAccess&sig=Lkdf98qSZDkveH0hbaYcMHu2L9kgBnSR4wnev%2FF4UOM%3D&__gda__=1574979692_91cabe00ab40eed0d1d67d637ff09082

The URL which is retrieved:
https://gameclipscontent-d2017.xboxlive.com/xuid-2535472745162130-private/62f505f8-12a6-4e46-8748-153166760e4d.MP4?sv=2015-12-11&sr=b&si=DefaultAccess&sig=Lkdf98qSZDkveH0hbaYcMHu2L9kgBnSR4wnev/F4UOM=&__gda__=1574979692_91cabe00ab40eed0d1d67d637ff09082

(The "%2F" is decoded as "/" and the "%3D" is decoded as "=")
This information should be sufficient to fix the problem. Thank you.