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Re: What's cooking in git.git (May 2019, #04; Tue, 28)

On Wed, May 29, 2019 at 09:53:44AM -0700, Junio C Hamano wrote:

> >> * ds/object-info-for-prefetch-fix (2019-05-28) 1 commit
> >>  - sha1-file: split OBJECT_INFO_FOR_PREFETCH
> >> 
> >>  Code cleanup.
> >> 
> >>  Will merge to 'next'.
> >
> > I think this one is actually a bug-fix (we are refusing to prefetch for
> > "QUICK" calls even though was not the intent), and it is new in this
> > release.
> >
> > I'm not sure of the user-visible impacts, though. There are a lot of
> > QUICK calls, and I'm not sure for which ones it is important to fetch.
> Hmph.  I took it as primarily futureproofing, as I didn't find a way
> to trigger bad behaviour from within the current codebase.

Hmm. Looking over the uses of OBJECT_INFO_QUICK, they all seem to be in
either index-pack or as part of a fetch operation. And in both of those
cases, we'd disable the whole feature anyway with fetch_if_missing.

So I _think_ you are right, and there isn't a way to trigger it.