[merge] from Robert: handle NULLREVISION

[Robert Collins]

On Sat, 2006-07-01 at 21:41 -0400, Aaron Bentley wrote:
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> John Arbash Meinel wrote:
> > John Arbash Meinel wrote:
> > ^- Why do this here, rather than having 'repository.get_revision_graph'
> > return the empty set for NULL_REVISION?
> > 
> > Otherwise it looks good.
> 
> That was my only question, too.  I'm +1 on anything that gets us away
> from using None as the null revision's ID.

I had a memory that the Repository API was not meant to know about
NULLREVISION.

As you introduced it, and share Johns opinion, I'm completely happy to
redo this as a change to get_revision_graph.

- which I will do when I have a chance.

Cheers,
Rob

-- 
GPG key available at: <http://www.robertcollins.net/keys.txt>.
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