LoadingBar auto finish

[cnguu]

TuSimple/naive-ui version (版本)

2.15.1

Vue version (Vue 版本)

3.1.2

Browser and its version (浏览器及其版本)

Chrome(91.0.4472.124)

System and its version (系统及其版本)

Windows 10 20H2

Node version (Node 版本)

Reappearance link (重现链接)

https://codesandbox.io/s/intelligent-ellis-k3oew?file=/src/Content.vue

Reappearance steps (重现步骤)

1. loadingBar.start();

Expected results (期望的结果)

The loading bar can be closed manually

Actual results (实际的结果)

loadingBar.start() then closes automatically

Remarks (补充说明)