When part's configuration is updated =>
Don't call config_manipulation.update_print_fff_config() separately for applied object's config and then applied own config.
Configuration have to be applied from object config and its config. And than call config_manipulation.update_print_fff_config().
+ Redundant call of the update_config_values() is deleted from DeleteButton event. All checks are made during update_settings_list().
849fbc3a5e