Bad diff result on a file encoded with win1252 charset

[DenisM67]

Hello,
The diff detects falses differences when the file is win1252 encoded.
The left side is open with UTF8 mode, the right side is open with win1252 mode.
My file is correctly encoded in win1252 and vscode is correctly configured to open files in win1252 mode.

That Is a show stopper.

Thanks,
Denis.