[CommonHTML] semantic tag causes shrink-wrapping of labels
The following gets shrink-wrapped:
<math>
<semantics>
<mtable>
<mlabeledtr>
<mtd><mtext>(1)</mtext></mtd>
<mtd><mtext>Hello</mtext></mtd>
</mlabeledtr>
</mtable>
</semantics>
</math>
If the semantics tag is removed, the rendering is correct.