Re: Small rerere in rebase regression

> Subject: [PATCH] rebase -i: remove an unnecessary 'rerere' invocation
> 
> Interactive rebase uses 'git cherry-pick' and 'git merge' to replay
> commits. Both invoke the 'rerere' machinery when they fail due to merge
> conflicts. Note that all code paths with these two commands also invoke
> the shell function die_with_patch when the commands fail.
> 
> Since commit 629716d2 ("rerere: do use multiple variants") the second
> operation of the rerere machinery can be observed by a duplicated
> message "Recorded preimage for 'file'". This second operation records
> the same preimage as the first one and, hence, only wastes cycles.
> Remove the 'git rerere' invocation from die_with_patch.
> 
> Shell function die_with_patch can be called after the failure of
> "git commit", too, which also calls into the rerere machinery, but it
> does so only after a successful commit to record the resolution.
> Therefore, it is wrong to call 'git rerere' from die_with_patch after
> "git commit" fails.
> 
> Signed-off-by: Johannes Sixt <j6t@kdbg.org>