After editing a bunch of cites in [[Rose Pesotta]], a bot helpfully corrected the new citations by removing the language parameter.
https://en.wikipedia.org/w/index.php?title=Rose_Pesotta&diff=655246562&oldid=655085778
No idea why, but seems worth investigating.
(Tangentially, this did make me notice that sometimes language is "English" and sometimes "en"? Not sure if that is worth addressing.)