See image, It's happening only on English Wikipedia.
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Restricted Application added a subscriber: Aklapper. · View Herald TranscriptAug 4 2020, 10:31 AM2020-08-04 10:31:09 (UTC+0)
CptViraj closed this task as a duplicate of T259565: [Regression] Unparsed wikitext in various JavaScript messages.Aug 4 2020, 10:34 AM2020-08-04 10:34:18 (UTC+0)
Xiplus closed this task as a duplicate of T259565: [Regression] Unparsed wikitext in various JavaScript messages.Aug 4 2020, 10:36 AM2020-08-04 10:36:15 (UTC+0)