[xsl] xslt 1.0 duplicates refresher

Subject: [xsl] xslt 1.0 duplicates refresher
From: "Ihe Onwuka ihe.onwuka@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 12 Nov 2015 12:03:01 -0000
If a nodeset contains multiple elements with the same value then unioning
the nodeset with itself will not eradicate those duplicates.

If I have a nodeset containing


which I use as a lookup, then a nodeset created just by looking up the
value 1, 5 times will not contain <a>1</a> once and not 5 times.

The latter case is because a nodeset cannot contain multiple copies of the
same node.

Please correct my thinking here.

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