Vant-ui popup UI bug

[suyulin]

Affected version

0.13

No same issues found.

• [X] Yes, I search all issues but not found.

Steps to Reproduce

1. click showBasic button double

Code example

  <van-cell :title="'buttonBasic'" is-link @click="showBasic = true;"/>
      <van-popup v-model:show="showBasic" :overlay="true" :style="{ padding: '30px 50px',width:'100px',height:'100px',textAlign:'center' }">
       {{ 'content' }}
      </van-popup>

Expected results

content display

Actual results

content display none