We ruled out bug 1886042 = based on merge dates. However the root cause may be difficult to trace by pushlog since it appears that the Fenix codebase was merged into m-c on the date in question, March 18, 2024. And there are hundreds of geckoview changes that I'm unsure the origin of: https://hg.mozilla.org/mozilla-central/pushloghtml?startdate=2024%2F03%2F17&enddate=2024%2F03%2F18
Bug 1901604 Comment 2 Edit History
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We ruled out bug 1886042 based on merge dates. However the root cause may be difficult to trace by pushlog since it appears that the Fenix codebase was merged into m-c on the date in question, March 18, 2024. And there are hundreds of geckoview changes that I'm unsure the origin of: https://hg.mozilla.org/mozilla-central/pushloghtml?startdate=2024%2F03%2F17&enddate=2024%2F03%2F18