<fixture-test>
  <template shadowrootmode="open">
    <omg-whatever data-id="external-inner-static" inner-h-t-m-l="replaced">
      original
    </omg-whatever>
    <omg-whatever data-id="external-inner-computed" inner-h-t-m-l="injected">
      original
    </omg-whatever>
    <omg-whatever data-id="external-inner-spread">
      original
    </omg-whatever>
  </template>
</fixture-test>