[vreg] vregistry._select_best was needlessly instanciating NoSelectableObject (closes #1626708) in large selections, this incurred a non negligible cost (add_relations with 2000 inlined relations runs 7% faster with this patch)

#! /bin/sh -e
 
case "$1" in
    purge)
	rm -rf /etc/cubicweb.d/
	rm -rf /var/log/cubicweb/
	rm -rf /var/lib/cubicweb/
    ;;
esac
 
#DEBHELPER#
 
exit 0