The wiki is working again, at least well enough that a user prefs change and a page edit both succeeded.
The trouble was that when the wiki moved to leaf.dragonflybsd.org as a host machine, it was set up with its prefix being itself; the MoinMoin support files were installed to a heirarchy within the wiki directory, along with the directory holding that instance of the wiki. It was self-contained, but it meant the new files from the upgrade were installed in the default location (/usr/pkg/share/python/moinmoin or something like that), and manually adjusting the path to install still had other issues. I did a fresh install and moved over the pages and user data directories; after some permission fixing, they seem to be OK. Please tell me if there's issues, of which I sincerely hope there aren't any.
