TypeError when loading a directory while my wireless network was down

[zooko]

I had just brought my laptop out of sleep and it hadn't yet connected to a wireless network when I clicked on the bookmark to take me to my blog. It said something to the effect that the file was unrecoverable, and I saw that the network had just about finished coming up (according to the little radio wave icon thingie at the upper-right-hand corner of my Mac OS X desktop), so I hit reload. It said:

/Users/wonwinmcbrootles/playground/allmydata/tahoe/trunk/trunk/src/allmydata/mutable/retrieve.py, line 113 in __init__
111        self._status.set_active(True)
112        (seqnum, root_hash, IV, segsize, datalength, k, N, prefix,
113         offsets_tuple) = self.verinfo
114        self._status.set_size(datalength)

Locals
verinfo	None
prefix	'6s64w'
self	<allmydata.mutable.retrieve.Retrieve instance at 0x37a4828>
<type 'exceptions.TypeError'>: 'NoneType' object is not iterable

I'll attach the full resulting error page and the two incident report files that were generated.