Surfacing navtitle in Collaborative Review

I've been asked to make navtitle visible in our review content. At line 340 dita2htmlImpl.xsl, I found this:

<!-- Hide titlealts - they need to get pulled into the proper places -->
<xsl:template match="*[contains(@class,' topic/titlealts ')]"/>

I've tried modifying this to process titlealts and adding a separate template to match topic/navtitle, but the first template never runs. Has anyone else modified this code before and gotten results?