Why is it that I can never solve my problems until I post, and then it becomes abundantly clear.
Several hour ago, while trying to get tsearch to work with 0.3.1, I'd followed the suggestion in this thread: https://openacs.org/forums/message-view?message%5fid=68129 , which resulted in the breakage reported above. Doh. Reverting my changes resolves the problem in 0.3.2.
