SilvaNews: Invalid XHTML

Hi all!

I just checked the validity of some silva-generated pages and came
across a bug in these page templates:
SilvaNews/views/public/NewsViewer/search_news.pt
SilvaNews/views/public/NewsViewer/view_archive.pt
SilvaNews/views/public/NewsViewer/view_news.pt

They all contain
<span
  xmlns="http://www.w3.org/1999/xhtml"
  xmlns:metal="http://xml.zope.org/namespaces/metal"
  xmlns:notal="http://www.infrae.com/silva/notal"
  ...
>
which triggers four validation errors:
The "xmlns" and "xmlns:notal" are rejected as illegal attributes and
the block-level elements h2 and table are not allowed inside the
inline element span.

The last two can be fixed by using a div instead of span. (Or maybe
even omitting the tag completely?) I'm not sure about the xml
namespaces...

This is for SilvaNews version 1.2. Is this fixed in newer versions?

Best regards,
-Frank Schimmel