Comment 2 for bug 483388

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Matthew Fuller (fullermd) wrote : Re: [Bug 483388] Re: merge lies about lacking common ancestors

> This appears to be a criss-cross, but of two revisions that have no
> parents (other than null:).

In this repro script, the two branches share 2 common initial
revisions. In the actual case I ran into it, the branches had 2 and 3
(respectively) initial revs, with 2 of them being common, and for the
branch with 3 initials, the leftmost initial rev was the uncommon one.
But I don't believe either the extra uncommon path or the chirality
matters.