Also confirming the problem.
jeremyb added the "ops" keyword, hence wondering if this is an indexing script issue on a lower level, or if this is CirrusSearch territory itself.

Removing ops, as either way it wouldn't require their help.

Fixed/fixing now. When the search index is fully rebuilt it'll be right again.

We had a great cataclism. Search indexes were removed somehow and recreated with bad settings. Some stuff continued to work with the bad settings. Some stuff didn't. Expect to see some more bugs filed around how we make sure this doesn't happen again other than "don't let anyone other than Nik touch it."

Verified against itwiktionary using Nemo's wonderful reproduction steps.