[xsl] xsl:sort descending causes attribute nodes to be created after chi

Hi XSLT'ers,

The following issue is easy to workaround, but I am wondering if this is 
correct behavior after the XSLT 2 (or even 1) recommendation.
With an xsl:apply-template that includes attribute nodes in its 
select-attribute, and you apply an xsl:sort on the children, then it 
happens that the attribute nodes are created after the children when the 
order of xsl:sort is descending. I tried google on this, but couldn't 
find something useful.
The example below throws the following error:
"An attribute node (count) cannot be created after the children of the 
containing element"
I did not try other parsers. The xslt employs a simple copy idiom and 
sorts the rows of the input in $data. Call the XSLT on itself to see the 
error or the results:
<xsl:stylesheet
   xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
   version="2.0">

   <xsl:output indent="yes" />
  
   <xsl:variable name="data">
       <rows count="3">
           <row>bbbb</row>
           <row>aaaa</row>
           <row>cccc</row>
       </rows>
   </xsl:variable>
  
   <xsl:template match="/">
       <xsl:apply-templates select="$data/*" />
   </xsl:template>
  
   <xsl:template match="node() | @*">
       <xsl:copy>
           <xsl:apply-templates select="node() | @*" />
       </xsl:copy>
   </xsl:template>

   <xsl:template match="rows">
       <xsl:copy>
           <xsl:apply-templates select="node() | @*">
               <xsl:sort
                   select="text()"
                   order="descending" />
           </xsl:apply-templates>
       </xsl:copy>
   </xsl:template>

</xsl:stylesheet>


Any thoughts on this? Is this behavior desired and/or required, or is 
this the processor's mistake?
Btw: a possible workaround is to apply the attribute node first.

Cheers,
-- Abel Braaksma
  http://www.nuntia.nl



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