Nethifier: Checkbox not reflecting Ringtone configuration

Steps to reproduce

Open Nethifier, edit settings, set Ringrone popup position to "none"
Close software and reload settings, there will be a "default checkbox" (bottom right) not reflecting saved config

Expected behavior

After reloading no checkbox in Ringtone tab should be checked

Actual behavior

After reloading actually there's a default checkbox in Ringtone not reflecting saved config

Components

Nethifier 3.1.0

Acknowledgements

Thanks to Angelo Bollettini for the notice!

nethesis / dev