[web/test] don't depend on iteration order on a set Fixes test under python -R ('pending_insert' in session data is a set, so we can't rely on any particular ordering). Related to #4959402.

#!/bin/sh -e
if [ "$1" = "purge" ] ; then
        update-rc.d cubicweb remove >/dev/null
fi
 
#DEBHELPER#
 
exit 0