I have managed to split my values from my ultimate picker and everything is happy, but the last id from my picker always has an extra 1 for some reason.
for example:

1305,1295,1297,1298,13001 (should be 1300)

and here is my code:

<xsl:variable name="source" select="/macro/source"/>
<xsl:variable name="relItems" select="umbraco.library:GetXmlNodeById($source)" />
<xsl:variable name="relSplit" select="umbraco.library:Split($relItems, ',')" />

<xsl:template match="/">

    <h2>
        <xsl:value-of select="$relItems" />
    </h2>



<xsl:for-each select="$relSplit/value">
    <xsl:variable name="currentItem" select="umbraco.library:GetXmlNodeById(.)"/>
    <xsl:for-each select="umbraco.library:GetXmlNodeById($currentItem/@id)/descendant-or-self::node">

        <h2><xsl:value-of select="@nodeName" /></h2>
        
    </xsl:for-each>
</xsl:for:each>

So every last item that I select doesn't get retreived because the final id gets mangled. What am I doing wrong?