Yes. From source:
<div id='wikicmds'>
<if /xowiki/ not nil>
<a href="/xowiki/" accesskey='i' title='Go to the start of this package ...'>Index</a>
</if>
...
etc.
...
</div>
When viewed as I initially saw it, using the Firebug html viewer in Firefox, it has clearly been further mangled. I suspect this is because Firebug is trying to make some sense of it:
<div id="wikicmds">
<if nil="" not="" xowiki="">
<a title="Go to the start of this package ..." accesskey='i' href="/xowiki/">Index</a>
</if>
...
etc.
...
</div>
In both cases, the <if> tags are clearly present in the source received by the browser.
Regards
Richard