LucasWerkmeister added a comment.
It happens only //not// in the tainted reference situation, because if you’re changing the statement value (with or without changing the reference), then `oldStatement` won’t be `null`. However, due to T250069 <https://phabricator.wikimedia.org/T250069>, once this has happened anywhere on the page (i. e. you’ve added any new statement), the hook will never reach subscribers again until the page is reloaded, for tainted reference-eligible edits as well as other statement edits. TASK DETAIL https://phabricator.wikimedia.org/T250070 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: LucasWerkmeister Cc: WMDE-leszek, matej_suchanek, Nikki, Aklapper, LucasWerkmeister, EgbeRef, Vaibhav0199, Sarai-WMDE, Tinzawoo533, darthmon_wmde, Onmir, DannyS712, Nandana, Mh-3110, Amorymeltzer, Lahi, Gq86, GoranSMilovanovic, Jayprakash12345, QZanden, enigmaeth, rohitt, LawExplorer, _jensen, rosalieper, Scott_WUaS, Jonas, Dixtosa, Wikidata-bugs, aude, Dinoguy1000, Lydia_Pintscher, Mbch331
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