FWIW, the search trick might not catch every kind of indexing shenanigans.
I recently updated my PW2 from 5.8.1 (

) to 5.9.7 to test some stuff, and it spent a couple hours indexing... stuff? that never showed in a search, but I definitely saw in the logs (which lead me to realize that the indexer was hilariously struggling with those files, given the amount of segfaults

).