Re: Bizarre missing changes (git bug?)

> The idea is to compute, for each commit in the "full history" result set,
> the commit that should replace it in the simplified history.  This
> replacement commit is defined as follows:
>
>  * In any case, we first figure out the replacement commits of parents of
>    the commit we are looking at.  The commit we are looking at is
>    rewritten as if its parents are replacement commits of its original
>    parents.
>
>  * If the commit is marked as TREESAME (i.e. it modifies the paths we are
>    interested in), then the replacement commit is itself.  IOW, the commit
>    is not dropped from the final result.