Visual Studio Code: can't edit LEFT-side file during COMPARE

Edit: this should be working out of the box in vscode version 1.41.0

It will show Unknown configuration setting but it's working.

"diffEditor.originalEditable": true

like mentioned here.

Open VSCode, open the command palette (on windows it's Ctrl + shift+ P), then type setting and open the Preferences: Open Settings (JSON)

Then you will see something like this:

Paste "diffEditor.originalEditable": true, inside the {}

Example:

enter image description here