The behavior of ARow ACol in 2.0 and ARow ACol in 1.7 is different, causing migration problems

[cloud0072]

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

Version

2.0.1

Environment

win10 chrome 版本 88.0.4324.190 64 位 vue3.0.5/vue2.6.5

Reproduction link

http://localhost:3000/抱歉没有外网链接

Steps to reproduce

分别在 antd 1. 7 和 2.0中使用如下代码
< a-row :gutter="24">
< div>
< a-col :span="6">1
< a-col :span="6">2
< a-col :span="6">3
< a-col :span="6">4
< /div>
< /a-row>

What is expected?

能够正确的分割为四段

What is actually happening?

1.7版的ant是可以正常分割的，但是2.0版这段代码会失效

---

a-row的子节点中加入div会导致a-col无效

[cloud0072]

< a-row :gutter="24">
< vue-draggable
v-model="widgets"
forceFallback="true"
animation="300"
handle=".draggable-button"
@change="onChangeWidgets"
>
< transition-group>
<component
v-for="item in widgets"
:key="item.widgetId"
:is="item.name"
:options="options"
:widget="item"
@close="delWidget({ widgetId: item.widgetId, active})"
>
< /transition-group>
< /vue-draggable>
< /a-row>
我是用了如上代码，并且在迁移至2.0.1后无法正常使用，后发现是由于加入了一层 div

[zkwolf]

这也算是预期行为了吧，后面可能会提供个hook支持一下这种场景

[cloud0072]

这也算是预期行为了吧，后面可能会提供个hook支持一下这种场景

请务必尽快支持，感激不尽

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