Comment 1 for bug 1041792

It's not a trivial thing to cross-tag xml! I think this is fixed now in the latest release, I'm able to get the following xml without it throwing an error now:

  <size:huge>
    <bold>
      <monospace>
        This
        <highlight>
          is
          <strikethrough>
            <italic>a n</italic>
          </strikethrough>
        </highlight>
        <strikethrough>
          <italic>o</italic>
        </strikethrough>
      </monospace>
      <italic>
        <strikethrough>te</strikethrough>
      </italic>
    </bold>
    <italic>
      <strikethrough />
      test
    </italic>
  </size:huge>

So hopefully that means most cross-boundary spans will work :)