> From: Vasily Makarov <einmal...@gmail.com>
> Git documentation defines commit ancestry as "reachability" of one commit 
> from another.
> Formally, this might mean that every commit is ancestor and descendant of 
> itself. 
> I've also checked git merge-base --is-ancestor and found it returns "true" 
> for same commit passed twice as argument.
> This is formal although not so evident detail, and IMO it changes meaning 
> of some git commands/options.
> Does anybody have any thoughts on this?

I believe that "ancestor" and "descendant" are consistently used in
the "inclusive" sense, that is, a commit is its own ancestor and

If the documentation is not consistent in this use, that needs to be
fixed, because not getting that detail right could cause unpleasant


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