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Re: Bug: `git commit --fixup` with duplicate commit messages




Hi Oliver,

On Fri, 14 Dec 2018, Oliver Joseph Ash wrote:

> I believe I have found a bug in `git commit --fixup`.
> 
> Steps to reproduce:
> 1. Create a git history with two commits (A and B) with the same
> commit message (e.g. foo)
> 2. Create a new commit using `git commit --fixup {SHA}`, referring to
> the last commit SHA
> 3. Run an interactive rebase
> 
> Expected: the fixup commit should appear below the last commit in the todo list.
> 
> Actual: the fixup commit appears below the first commit in the todo list.
> 
> It seems that the fixup commit is moved below the most recent commit
> with a matching commit message, however in this case there are
> duplicate commit messages. I would expect the fixup commit to be moved
> below the commit SHA I specified when I ran `git commit --fixup`.

Yes, this is a problem of the design of this feature. It was done
partially, I believe, to survive multiple rebases *without* --autosquash
before a final rebase *with* --autosquash.

The behavior really is by design.

Ciao,
Johannes