Paragraphs after list being "dropped" by site generation

When generating the Struts site, in some circumstances, the paragraphs that follow a list are disappearing from the generated document - the number of paragraphs dropped corresponds to the number of items in the list.

So if in the XML document I have something like the following, with 3 items in a list:

<ul>
<li>Item 1</li>
<li>Item 2</li>
<li>Item 3</li>
</lu>

Then the first three paragraphs following the list disappear - see the list of shale committers:
http://struts.apache.org/announce.html

I have re-produced this in a simple test document which I'll attach - along with the output from running "mvn site"