Unless CirrusSearch is now matching LuceneSearch behavior too well, or I missed something, it looks like we are not able to compare results of both search backends anymore:
* Search for `follow-up` always returns 81,765 results:
** https://en.wikipedia.org/wiki/Special:Search?search=follow-up&fulltext=1&srbackend=LuceneSearch
** https://en.wikipedia.org/wiki/Special:Search?search=follow-up&fulltext=1&srbackend=CirrusSearch
* Search for `bug found` always returns 68,972 results:
** https://en.wikipedia.org/wiki/Special:Search?search=bug+found&fulltext=1&srbackend=LuceneSearch
** https://en.wikipedia.org/wiki/Special:Search?search=bug+found&fulltext=1&srbackend=CirrusSearch
* Search for `álgebra` always returns 2,136 results:
** https://pt.wikipedia.org/wiki/Special:Search?search=álgebra&fulltext=1&srbackend=LuceneSearch
** https://pt.wikipedia.org/wiki/Special:Search?search=álgebra&fulltext=1&srbackend=CirrusSearch
* Search for `testing here` always returns 2,081,770 results:
** https://en.wikipedia.org/wiki/Special:Search?search=testing+here&fulltext=1&srbackend=LuceneSearch
** https://en.wikipedia.org/wiki/Special:Search?search=testing+here&fulltext=1&srbackend=CirrusSearch
**See also**
* The three search examples at {T64733} all return the same number of results for both values of `srbackend`
* The examples at {T65861}