RFC: revno pertubation rules

[James Westby]

On Thu, 2008-08-14 at 12:06 +1000, Robert Collins wrote:
> See the discussion under rollback - thats rollback+advance up a
> different path.

Ah, sorry, I was too quick to think I had spotted a problem
and didn't read the last sentence.

I think it's a bit odd to classify it like that though, but
I see the logic. Commit should be removed as a special
case of advance then?

I don't see other errors or anything you missed though.

Thanks,

James