message: Don't assume `false` means "use state"
diff: @@ -54,12 +54,12 @@ module.exports = React.createClass({
  if (this.props.onChange) this.props.onChange(newState);
  },
  - save: function(val = null) {
  + save: function(val = undefined) {
  return SettingsStore.setValue(
  this.props.name,
  this.props.roomId,
  this.props.level,
  - val ? val : this.state.value
  + val !== undefined ? val : this.state.value
  );
  },
  