[focus-preserve.html]
  [when reparenting an element, don't automatically reset the document focus]
    expected: FAIL

  [when reparenting a focused element into an inert parent, reset the document focus]
    expected: FAIL

  [when reparenting a focused element into a hidden parent, reset the document focus]
    expected: FAIL

  [when reparenting an ancestor of an focused element into a hidden parent, reset the document focus]
    expected: FAIL