On Mon, Oct 8, 2018 at 6:07 PM Junio C Hamano <gitster@xxxxxxxxx> wrote:
>
> Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx> writes:
>
> > Depending on how we're counting there's at least two.
>
> I thought you were asking "why the special sentinel is not 0{40}?"
> You counted the number of reasons why 0{40} is used to stand in for
> a real value, but that was the number I didn't find interesting in
> the scope of this discussion, i.e. "why the special sample is 17?"
>
> I vaguely recall we also used 0{39}1 for something else long time
> ago; I offhand do not recall if we still do, or we got rid of it.
gitk still shows changes added to the index as 0{39}1, whereas
changes not added yet are marked as 0{40}.
