[Range.html]
  type: testharness
  [cloneContents on Range must enqueue an attributeChanged reaction when cloning an element with an observed attribute]
    expected: FAIL

  [cloneContents on Range must not enqueue an attributeChanged reaction when cloning an element with an unobserved attribute]
    expected: FAIL

  [cloneContents on Range must enqueue an attributeChanged reaction when cloning an element only for observed attributes]
    expected: FAIL