tests/conf/attribset/attribset20.xml

<?xml version="1.0"?>
<docs>
<doc xmlns:ped="http://www.ped.com">
  <foo ped:att1="a"/>
  <outer xml:att1="b"/>
</doc>
<doc xmlns:ped="http://www.ped.com">
  <inner ped:att1="c"/>
  <foo xml:att1="d"/>
</doc>
</docs>