After playing around with the new nwiki, I've what I think to be a minor parsing bug. If I enter the following:

== New title ==
fdgfdg dfg <nowiki>[[not linked]]</nowiki>
this is [[a link]] to somewhere

=== Pictures ===
[[attach:stuart_x_smaller.jpg]]

IMPORTANT. After the "</nowiki> " tag there is a space. This makes all the difference from seeing the bug or not.

I get the attached output. The rendered HTML is:

<h2 id="a4e6577207469746c65" class="nwiki">New title</h2>
<p>
fdgfdg dfg
<br/>
[[not linked]]
</p>
<pre class="quote"/>
<p>
this is
<b>
</b>
<a href="view.php?id=253&page=a+link&gid=0&uid=0">?</a>
to somewhere
</p>
<h3 id="a5069637475726573" class="nwiki">Pictures</h3>
<p/>
<div class="img">...

If I bring the line under the </nowiki> tag up so that I have this:

== New title ==
fdgfdg dfg <nowiki>[[not linked]]</nowiki> this is [[a link]] to somewhere

I get the second screen shot where the "this is [[a link]] to somewhere" ends up in a quote block.

This is unexpected behaviour and often prevents you from mixing nowiki sections of text in with normal text.

--Stuart.