Not reproduced directly in the last 90 days: https://community.develocity.cloud/scans/tests?search.startTimeMin=1784246400000&search.startTimeMax=1792108800000&search.tags=CI&search.timeZoneId=UTC&tests.container=org.xwiki.mentions.test.ui.AllIT%24NestedMentionsIT&tests.test=comment. Only failures shown are unrelated: All from one master Environment Tests run on 2026-09-11 (commit 000c476f). The notifications page object called a REST test helper that no longer existed (NoSuchMethodError on TestUtils$RestTestUtils.executeGet)
