[selectors] EClassSelector (eg is_instance & all) should check for None value (possible w/ outer join) when a row is specified. Closes #2033165

#! /bin/sh -e

if [ -x "/etc/init.d/cubicweb-ctl" ]; then
    invoke-rc.d cubicweb-ctl restart || true
fi
 
 
#DEBHELPER#
 
exit 0