Igorkim78 added a comment.
The issue caused by a combination of Service node producing variable ?coDescription, which is not explicitely defined in the main query, so optimizers assume this variable not bound and do not bother with proper order of the lang function evaluation. Fixing might require reordering optimizers to make wikibase:label produced variables visible to other optimizers, but it kind of tricky because wikibase:label itself depends on results of other optimizers applied at the proper order (as wikibase:label takes a list of variables for processing from the main query). TASK DETAIL https://phabricator.wikimedia.org/T229655 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: Igorkim78 Cc: Smalyshev, Igorkim78, Aklapper, VladimirAlexiev, darthmon_wmde, Nandana, Lahi, Gq86, Lucas_Werkmeister_WMDE, GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, _jensen, rosalieper, Scott_WUaS, Jonas, Xmlizer, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331
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