ensure byline_author filter doesn't drop foreign markup

Submitted by Aristotle Pagaltzis

THANKS

@@ -16,6 +16,7 @@ Morten Frederiksen - expungeCache
 Lenny Domnitser - Coral CDN support for URLs with non-standard ports
 Amit Chakradeo  - Allow read-only files to be overwritten
 Matt Brubeck    - fix new_channel
+Aristotle Pagaltzis - ensure byline_author filter doesn't drop foreign markup
 
 This codebase represents a radical refactoring of Planet 2.0, which lists
 the following contributors:

filters/delDupName/byline_author.xslt

@@ -8,7 +8,7 @@
       <atom:name>
        <xsl:value-of select="substring(../atom:content/xhtml:div/xhtml:span[@class='byline-author'],11)"/>
       </atom:name>
-      <xsl:apply-templates select="*[name()!='name']"/>
+      <xsl:apply-templates select="*[not(self::atom:name)]"/>
     </xsl:copy>
   </xsl:template>