Hmm, in this case, `AutoMoveOneLineHandler` tries to move a line into a line in it. Therefore, the destination may become in an orphan node so that the DOM point comparison fails.
Bug 1865729 Comment 3 Edit History
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Hmm, in this case, `AutoMoveOneLineHandler` tries to move a line into a line in it. Therefore, the destination may become in an orphan node so that the DOM point comparison fails. (Moving all content of `<body>` to end of the `<body><svg><a display="table-header-group">`.)