Intermittent failure in /html/semantics/embedded-content/media-elements/media_fragment_seek.html

[jdm]

  ▶ Unexpected subtest result in /html/semantics/embedded-content/media-elements/media_fragment_seek.html:
  │ FAIL [expected PASS] Video should seek to time specified in media fragment syntax
  │   → assert_equals: expected 3 but got 0
  │ 
  │ @http://web-platform.test:8000/html/semantics/embedded-content/media-elements/media_fragment_seek.html:39:13
  │ Test.prototype.step_timeout/<@http://web-platform.test:8000/resources/testharness.js:1669:22
  │ Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:1611:25
  └ Test.prototype.step_func/<@http://web-platform.test:8000/resources/testharness.js:1635:35