Panel中ui-asset变成了ui-input?

Creator 2.x
#1 
<div>
  <ui-section id="nz-course-editor">
    <div class="header" v-text="$t('basicinfo')"></div>
    <ui-prop :name="$t('sn')" @change="onPropChange" data-key="basic.sn" type="string" :value="basic.info">
      <ui-asset class="flex-1" type="cc.Asset" droppable="asset"></ui-asset>
    </ui-prop>
  </ui-section>
</div>

#2

知道了。ui-prop只要有value就会自己创建ui-input而忽略嵌套内容