Re: [PATCH 0/3] Re-fix rebase -i with SHA-1 collisions

> Triggered by one of brian's SHA-256 patch series, I looked at the reason why
> the SHA-1 collision test case passed when it shouldn't. Turns out that the
> regression test was not quite thorough enough, and the interactive rebase 
> did regress recently.
> 
> While in the area, I realized that the same bug exists in the code backing
> the rebase.missingCommitsCheck feature: the backed-up todo list uses
> shortened commit IDs that may very well become ambiguous during the rebase.
> For good measure, this patch series fixes that, too.
> 
> Finally, I saw that git rebase --edit-todo reported the line in an awkward,
> maybe even incorrect, way when there was an ambiguous commit ID, and I also
> fixed that.
> 
> To make sure that the code can be easily adapted to SHA-256 after these
> patches, I actually already made those adjustments on top and offered them
> up at https://github.com/bk2204/git/pull/1.