dcatadmin form表单when判断无效

1. 问题描述？

dcatadmin form表单when判断无效,questionOptions这个是关联关系的方法名

$form->radio('questionOptions.is_answer', '答案')->default(0)
 ->options([0 => '错误', 1 => '正确'])
 ->when(1, function (Form $form) {
  $form->hidden('questionOptions.option_name')->default('T');
  })
 ->when(0, function (Form $form) {
  $form->hidden('questionOptions.option_name')->default('F');
  });