HTML parser incorrectly assumes that <tr> must be inside <tbody> #5403
Description
See
. In reality,<tr> may be inside <thead> instead, but the current version transforms
<table>
<thead>
<tr>...</tr>
</thead>
</table>into
<table>
<thead>
<tbody>
<tr>...</tr>
</tbody>
</thead>
</table>which does not makes sense.