async dangerousDestroyAll() {
        // Same default as defined in "default-settings.json"
        const defaultValue = '[]';

        return this.SettingsModel.edit([{
            key: 'notifications',
            value: defaultValue
        }], {context: {internal: true}});
    }
Comparing to destroyAll method this one wipes out the notifications data!
It is only to be used in a situation when notifications data has been corrupted and
there's a need to self-heal. Wiping out notifications will fetch some of the notifications
again and repopulate the array with correct data.