xslt update based on metanorma/mn-native-pdf@f692214

Author: Intelligent2013

lib/isodoc/plateau/plateau.international-standard.xsl

@@ -12313,6 +12313,7 @@
 
 	<!-- Normative references -->
 	<xsl:template match="*[local-name() = 'references'][@normative='true']/*[local-name() = 'bibitem']" name="bibitem" priority="2">
+		<xsl:param name="skip" select="normalize-space(preceding-sibling::*[1][local-name() = 'bibitem'] and 1 = 1)"/> <!-- current bibiitem is non-first -->
 
 				<fo:block id="{@id}" xsl:use-attribute-sets="bibitem-normative-style">