New XWiki Syntax guide lists every section twice

The new syntax guide developed in XWIKI-9176 lists every section twice in the left navigation; e.g. there are two "Introduction" etc pp

Can anyone reproduce this, or is it just me?

In case it is not jut me, a simple fix would be to add a "addFilter('unique')." to the query generating the navigation; i.e. in XWiki.XWikiSyntax, line 45:

#set($results = $services.query.xwql('from doc.object(XWiki.XWikiSyntaxClass) as syntax order by syntax.category, syntax.section').addFilter('currentlanguage').addFilter('unique').execute())