The discussion on Bug 985508 suggests that the pristine check can never apply for this package since /etc/iptables/rules is a 'configuration' file, not a conffile.
Therefore the use of dpkg-mainscript-helper is likely erroneous anyway. It will never be removed directly.
The discussion on Bug 985508 suggests that the pristine check can never apply for this package since /etc/iptables/rules is a 'configuration' file, not a conffile.
Therefore the use of dpkg-mainscript -helper is likely erroneous anyway. It will never be removed directly.
So perhaps we can strip all the complexity out?