The test currently do an edit and then undo it, however, if there are two CI jobs running, the following may happen: A edit -> B edit -> A revert (conflict, fail) -> B revert, leaving the test page in the state after A edit.

At about 2025-01-24T20:05, similar things happened and broke lots of CI tests.

Also, if there is an error when undo-ing the edit (e.g. network issues), the edit may not be undo-ed, too.