<set name="pz:limitmap:author" value="rpn:@attr 1=author_exact 6=3" />
<set name="pz:limitmap:subject" value="rpn:@attr 1=subject_exact" />
<set name="pz:limitmap:author" value="rpn:@attr 1=author_exact 6=3" />
<set name="pz:limitmap:subject" value="rpn:@attr 1=subject_exact" />