Re: [PATCH] git-commit --amend: respect grafted parents.

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Hi,

On Wed, 26 Sep 2007, Johannes Sixt wrote:

> This allows a poor-mans-filter-branch of the top-most commit.
> 
> Specifically, I had this history:
> 
>    --o--o--A'    <-- amended version of A
>          \
>           A
>            \
>     --o--B--M
> 
> I now wanted to "amend" M to pull in A' instead of A as its second 
> parent. For various reasons I didn't want to redo the merge M again, in 
> particular, it already contained the changes that were amended into A'. 
> So I figured I would just install a graft that lists B and A' as parents 
> of M and then do a simple git commit --amend. Alas, git commit looks at 
> the real parents instead of the grafted ones, so the amended M' would 
> still have A as its second parent. Here is the fix that picks the 
> grafted parents instead.

I do not think that this is a "fix".

I'd really suggest that you fix it up (before the amend!) by installing 
the graft, and running git-filter-branch -1 <branch>.  (Note: I did not 
test this, but it _should_ work.  If it does not, please let me know.)

Ciao,
Dscho

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