On Tue, Jun 27, 2017 at 5:17 AM, Ævar Arnfjörð Bjarmason <ava...@gmail.com> wrote: > This hopefully fixes the Solaris SPARC issue & doesn't cause > regressions elsewhere, e.g. on Cygwin. Adam, it would be great if you > could test that platform. > > I've already confirmed with Michael Kebe + another SPARC user > (CosmicDJ on Freenode #Solaris) that it works on Solaris SPARC. The > question is whether it breaks anything else. > > Per the upstream pull request: > https://github.com/cr-marcstevens/sha1collisiondetection/pull/36 > > Marc would (understandably) like some wider testing of this before > merging it into the upstream project. > > WRT the submodule URL & branch changing: I have no idea how > git-submodule handles this in the general case,
It is trying a couple of things, see cmd_update in git-submodule.sh look for the call sites of fetch_in_submodule which tries to fetch the default branch, by-sha1 if that doesn't help. > but it Just Works with > GitHub because it allows fetching arbitrary SHA1s that any ref > (including pull req refs) point to. Which is only half the story (but it works most of the time). They may have uploadpack.allowTipSHA1InWant but what is really interesting is uploadpack.allowReachableSHA1InWant.
