Fix conversions for official Atom feeds

xslt/itsb.xsl

@@ -125,8 +125,13 @@
         <xsl:value-of select="$format" />
       </xsl:attribute>
 
+      <!--
+        For custom feeds, grab the previously generated feed locally.
+        For official RSS feeds, grab the feed online.
+        For official Atom feeds, grab the converted feed locally.
+      -->
       <xsl:choose>
-        <xsl:when test="itsb:output">
+        <xsl:when test="itsb:output or (@format = 'atom' and $format != 'json')">
           <shell>
             <xsl:text>cat $DIR/feeds/</xsl:text>
             <xsl:choose>