Dev channel update to 82.0.446.0 is live

josh_bodner Please fix Edge interaction with MPV player.

Problem:

If a file extension associated with mpv player, it becomes impossible to download such file with Edge. Either nothing is happening when pressing "Save As" or trying to download the file using "Download" function of the native Edge media player, or Edge offers to Open the file in mpv instead of offering to save it.

Steps to repro:

Try downloading a random webm file with Edge - there shouldn't be any issues. Doesn't have to be webm, just a media file associated with mpv.

Now "install" mpv from the link below using a bat file, associate webm with mpv and try to download the same webm again - either nothing is happening or Edge offers to Open this file in mpv player. 

MPV player in quiestion: https://sourceforge.net/projects/mpv-player-windows/

Integrated in OS via mpv-install.bat that comes with the player in mpv/installer folder (since the player is portable), here's full contents of this bat: https://pastebin.com/CtkxRPyT

I know mpv isn't a popular Windows player but I don't have such issues saving files with vanilla Chromium or Firefox, so this leads me to believe this is an Edge issue and not mpv. 

I've attached an example of the Open dialogue that pops up when I press "Save As".