uploading a directory causes a brief dirnode exception

[warner]

I'm not sure why, but uploading a directory (the tahoe source tree), using 'curl', causes a (benign) exception in the vdrive server:

LOCAL: File "/home/amduser/trunk/instdir/lib/allmydata/dirnode.py", line 81, in get LOCAL: raise KeyError?("unable to find key %s" % idlib.b2a(key)) LOCAL: exceptions.KeyError?: 'unable to find key uumzl6h4bokrkamr2z742hexgyg6oin2elowlkdrhfpd5hair3ya===='

I suspect that part of the upload process creates an empty directory and then tries to use it before the operation has completed, or something. I need to poke through the existing dirnodes and find which one references this one.