Undo last commit: keep staged files via git reset --soft

[borekb]

The Undo Last Commit currently behaves like git reset --mixed: it undoes the commit and discards anything that has been staged. If I had previously carefully added files or hunks to the stage, this work is lost.

I think it would be better to switch to the git reset --soft behavior:

• If adding to index was carefully done, this work would be preserved.
• If the users wants the --mixed behavior, i.e., reset all the staged files, VSCode already has a convenient button for that.

Because of the latter point, I'd propose VSCode changes the behavior, not introduce an option for mixed vs. soft behavior.

[steevsachs]

I’d like to work on this if it’s agreed to move ahead with the change.

For the record, I agree with the proposed change, but I could also see this as a configuration to preserve behavior for users used to it.

[joaomoreno]

Fixed by #60104