because it produces duplicate ids in the output because
the element template calling simple.xlink generates the
id attribute.
<xsl:otherwise>
<a>
<xsl:apply-templates select="." mode="common.html.attributes"/>
+ <!-- id attribute goes on the element calling
+ simple.xlink, not on the anchor element, so
+ this is commented out:
<xsl:call-template name="id.attribute"/>
+ -->
<xsl:attribute name="href">
<xsl:call-template name="href.target">