Radicale2 'rights' setting has no effect?

I'm not sure what I'm doing wrong, but no matter what option I choose in luci, the /var/etc/radicale2/config file doesn't get any options in the [rights] section. /etc/config/radicale2 changes, but the generated runtime configuration doesn't seem to change. Anybody recognize this symptom?

Let's assume there is something wrong with luci or the configuration generation. If I want to manually configure this server to test, how do I do that? If I shutdown the server, create my own runtime configuration file, then restart the service, that will regenerate the configuration file from luci settings, right?