span-template in html2document.xsl doubles span-content

template for span-element traverses to children elements via xsl:apply-templates TWICE!
once in xsl:choose, than outside
thus producing doubling the content of span.
::
    <xsl:template match="span">
<xsl:choose>
<!-- ... -->
<xsl:otherwise>
<!-- Strip -->
<xsl:apply-templates/>
</xsl:otherwise>
</xsl:choose>
    
           <xsl:apply-templates select="./*"/>
    </xsl:template>