[xwiki-users] user name with stressed characters is encoded as XML entity

Hi, I have user name with stressed character as è, é, à.. . I noticed that when they publish a post on the blog application, the associated rss feed contains the dc-creator tag with XML encoded entities in this way: <dc:creator>Julian Den&#224;</dc:creator> Is there a way to modify this behavior (many rss viewers do not parse the entities L )? A similar thing happens when I export a PDF document: the author of the page is correct on the HTML page of the wiki document (on the HTML script I have Last modified by <span class="wikilink"><a href="/wiki/bin/view/XWiki/dena">Julian Denà</a></span> ) but on the PDF document I've the XML encoded entity. Thank you in advance for your help. Best Regars, Andrea