Hello, I was trying to analyze the filter cache performance and noticed a strange thing. Upon searching with fq, the entry gets added to the cache the first time. Observing from the "Stats/Plugins" tab on Solr admin UI, the 'lookup' and 'inserts' count gets incremented. However, if I search with the same fq again, I expect the lookup and hits count to increase, but it doesn't. This ultimately results in an incorrect hitratio. I tried this scenario on Solr 7.2.1, 7.7.2 and 8.5 and observe the same behavior on all three versions.
Is this a bug or am I missing something here? Thanks, Rahul
