Difference in file_graph.heads() and rev_graph.heads()

[Robert Collins]

On Mon, 2009-11-30 at 17:14 -0600, John Arbash Meinel wrote:


> It is also possible that the file was deleted before the merge (and
> restored by the merge). Which *doesn't* converge the per-file graph (I
> believe.)...

That would make sense to me. And yes, we have a defect in the per-file
graph that we don't record deletes, nor does commit look for the
last-alive version if a fileid isn't present in any parent.

-Rob
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