Re: git add --intent-to-add + git stash "Cannot save the current worktree state"

>
> Hi Anthony,
>
> On Thu, 3 Jan 2019, Anthony Sottile wrote:
>
> > Minimal reproduction
> >
> > ```
> > git init t
> > git -C t commit --allow-empty -m 'initial commit'
> > touch t/a
> > git -C t add --intent-to-add a
> > git -C t stash
> > ```
> >
> > ```
> > + git init t
> > Initialized empty Git repository in /private/tmp/t/t/.git/
> > + git -C t commit --allow-empty -m 'initial commit'
> > [master (root-commit) 858132e] initial commit
> > + touch t/a
> > + git -C t add --intent-to-add a
> > + git -C t stash
> > error: Entry 'a' not uptodate. Cannot merge.
> > Cannot save the current worktree state
> > ```
>
> Apparently it is even worse. On Windows, this reportedly resulted in a
> segmentation fault:
>
> https://github.com/git-for-windows/git/issues/2006
>
> Could you cherry-pick the fix of
> https://github.com/git-for-windows/git/pull/2008 and see whether it fixes
> your use case, too?
>
> Ciao,
> Johannes
>
> P.S.: Obviously, if this PR fixes the issue, the corresponding change
> should be squashed into the appropriate commit in ps/stash-in-c.