In Habmin, go to Configuration> Things, select your lock, then select Attributes. Do you see a green checkmark for Using Security? The CONFIGURATION command class requires your lock to be securely included, so this may explain why it is not saving. You may also want to enable debug logging for the zwave binding (log:set DEBUG org.openhab.binding.zwave) to aid in troubleshooting (put it back to INFO when your done).
[EDIT: Nevermind… you already said that you can control your locks, so they must be securely included.]