[cwctl] on upgrade, clear instance_md5_version cache The generate-static-datadir depends on a correct config.instance_md5_version(), and we just invalidated it by upgrading the instance.

#!/bin/sh -e

if [ "$1" = "purge" ] ; then
        rm -rf /etc/cubicweb.d/
        rm -rf /var/log/cubicweb/
        rm -rf /var/lib/cubicweb/
fi

#DEBHELPER#
 
exit 0