RSS feed does not work on categories

Hi,

I use the Blog application and would like to use different RSS feeds filtered by category. I encounter the following problem.

Using this URL I get a complete RSS feed of all blog posts.
https://xwiki.mycompany.local/bin/view/Blog/?xpage=plain&sheet=Blog.BlogRss

but when I try to use a RSS feed filtered by category with this url:
https://xwiki.mycompany.local/bin/view/Blog/News?xpage=plain&sheet=Blog.CategoryRss
I get an empty RSS feed.

<?xml version=“1.0” encoding=“UTF-8” ?> <rdf:RDF xmlns:rdf=“http://www.w3.org/1999/02/22-rdf-syntax-ns#” xmlns=“RDF Site Summary (RSS) 1.0” xmlns:dc=“DCMI: DCMI Metadata Terms”> <channel rdf:about=“/bin/view/Blog/News”> <title>News</title> <link>http://xwiki.mycompany.local/bin/view/Blog/News&lt;/link&gt; <description>Aktuelle Blogeinträge in der Kategorie News</description> <dc:rights>This wiki is licensed under a &#60;a rel=&#34;license&#34; href=&#34;http://creativecommons.org/licenses/by/2.0/&amp;#34;&amp;#62;Creative Commons 2.0&#60;/a&#62; license</dc:rights> <items> <rdf:Seq> </rdf:Seq> </items> </channel> </rdf:RDF>

I tried this too: https://xwiki.mycompany.local/bin/view/Blog/CategoryRss?xpage=plain&category=Blog.News
But this delivers the same empty RSS feed.

Is this a bug or is something wrong with my installation ?

found it in the bug database seems to be a bug.