Copy vs copy-of (was: How to delete empty element tag from output XML?)

["Eliot, Topher" <Christopher_Eliot@xxxxxxxxxxxxx>]

How would your sample below be different from

 <xsl:template match="*" mode="copy-unless-empty">
  <xsl:if test="node()">
    <xsl:copy-of select="."/>
  </xsl:if>
 </xsl:template>

> <xsl:template match="*" mode="copy-unless-empty">
>  <xsl:if test="node()">
>   <xsl:copy>
>    <xsl:copy-of select="@*"/>
>    <xsl:value-of select="."/>
>   </xsl:copy>
>  </xsl:if>
> </xsl:template>




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