n-upload: when setting prop 'multiple="true"' as well as 'v-model:file-list="file-list"', multiple upload not work. only one last file selected. n-upload 设置 multiple="true"的时候，如果同时绑定 v-model:file-list="file-list"时，多选上传失效，只能上传一个

[madgd]

TuSimple/naive-ui version (版本)

2.15.3

Vue version (Vue 版本)

3.1.4

Browser and its version (浏览器及其版本)

91.0.4472.114

System and its version (系统及其版本)

MacOS(11.4)

Node version (Node 版本)

Reappearance link (重现链接)

https://codesandbox.io/s/eloquent-shaw-339jm?file=/src/Demo.vue

Reappearance steps (重现步骤)

add multiple="true" to n-upload, try upload multiple files.

Expected results (期望的结果)

multiple files added.

Actual results (实际的结果)

last one added

Remarks (补充说明)

if remove 'v-model:file-list="file-list"', multiple files added

[07akioni]

@Fnzero 这个优先处理一下