Pagination分页组件total参数使用变量，且默认值为0时，页面渲染后当前页不是选中状态，改变分页大小，控制台输出当前页，显示为0。

[mwdu]

• I have searched the issues of this repository and believe that this is not a duplicate.

Version

1.5.0

Environment

Windows10，Chrome 80.0.3987.149，Vue 2.6.10

Reproduction link

https://www.antdv.com/components/pagination-cn/

Steps to reproduce

<template>
<div style="margin-top:300px;margin-left:50px;">
<a-pagination
showSizeChanger
:pageSize.sync="pageSize"
@showSizeChange="onShowSizeChange"
:total="total"
v-model="current"
/>
</div>
</template>

<script>
export default {
name: "templateMgr",
data() {
return {
pageSize: 20,
current: 1,
total: 0
};
},
mounted() {
this.getData();
},
methods: {
onShowSizeChange(current, pageSize) {
console.log(current, pageSize);
},
getData() {
this.total = 200;
}
}
};
</script>

<style lang="less" scoped></style>

What is expected?

分页页码1应处于选中状态，并且选择更改pageSize下拉选择框时，控制台输出的current变量值应与当前页一致。

What is actually happening?

分页页码1未处于选中状态，更改pageSize，控制台输出的current变量值为0。

---

本例中将mounted钩子函数改为created，则可以运行正常。但若getData方法中改变this.total变量值操作处于异步操作环境中，分页页码默认选中状态时好时坏。

[tangjinzhou]

duplicate #1989

[github-actions]

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