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No, unfortunately, I haven't been able to look at it in a
while.  Short of locking it in python, I wasn't able to
avoid the failure.

I'm sorry I haven't updated this at all.  As far as I can
tell, it's still a problem, but I haven't not been able to
find a solution in the C code.  I supposely I spoke with too
much haste when I said I was perfectly capable of fixing the
problem myself.  The locking in the C code did seem correct,
but the memory was still getting stomped.