Re: RFE: Discard hunks during `git add -p`

> Current version: 2.10.2
> Example workflow:
> 
> * I would do a global substitution across a source tree, e.g. `perl
> -i -pe 's{OLD_FOO\(x\)}{NEW_BAR(x, 0)}' *.c`
> * Using `git add -p`, I would verify each of the substitutions that
> they make sense in their respective locations, and, based on that,
>   answer "y" or "n" to the interactive prompting to stage good hunks.
> * When done with add-p, I would commit the so-staged hunks,
>   and then use `git reset --hard` to discard all changes that were 
>   not acknowledged during add-p.
> 
> Being able to discard hunks (reset working copy to index contents) 
> during add-p would alleviate the (quite broad) hard reset.