I have a property that displays a checkbox list.  The result is a comma delimited list.  I am trying to use the code snippet below to take the list and convert it to nodes.  I have two items in the list but get a return count of zero.  Is this the correct code for the new schema?

    <xsl:variable name="preNodes">
      <xsl:variable name="advertisements" select="$currentPage/advertisements" />
      <xsl:variable name="nodeIds" select="umbraco.library:Split($advertisements, ',')" />
      <xsl:for-each select="$nodeIds/value">
        <xsl:copy-of select="umbraco.library:GetXmlNodeById(.)"/>
      </xsl:for-each>
    </xsl:variable>
    
    <xsl:variable name="nodes" select="msxml:node-set($preNodes)/node" />
    
    <xsl:value-of select="count($nodes//node)" />