:hover redraw problem with unclosed elements

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The underlines of the links to the right are not redrawn correcty if the mouse is quickly moved over them from bottom to top.
This is caused by this code:

<tr>
 <td>
  <a href="#"><span>text text test test</a>
 </td>
</tr>

This is an error correction issue, since this code is not valid (the <span> isn't closed). It only happens if the links are inside table cells. It is not reproducible with links inside normal block-level elements, like <div>.

This bug was introduced in Opera 7.1 Beta.