static JComboBox looselyBindLiveValueToComboBox(IVarWithNotify<S> lv, JComboBox cb) {
  onChange(cb, (ChangeTriggerable) -> lv.set(getText(cb)));
  bindToComponent(cb, -> {
    S value = lv!;
    if (value != null)
      selectItem(cb, value);
    else
      lv.set(getText(cb));
  });
  ret cb;
}