The position displayed by popover flashes every time it is clicked

[yiranmiao]

提问之前查阅了issues，有类似问题如下：
#3147
为什么要重新提问：
这里的解决办法是设置transitionName=""，确实可以解决闪跳的问题，但是同时也使popover失去了出现的动画效果。目前看2和3版本的ant deisgn已经解决了这个问题，目前1.7.8是否还会有后续更新解决这个bug？感谢
Version
1.7.8
Environment
Vue2.6

Reproduction link
https://1x.antdv.com/components/popover-cn/

Steps to reproduce
#3147

What is actually happening?
popover 位置计算有问题，每次点击后的位置会发生变化，会在两个位置之间反复横跳

[github-actions]

Hello @yiranmiao, your issue has been closed because it does not conform to our issue requirements. Please use the Issue Helper to create an issue, thank you!

你好 @yiranmiao，为了能够进行高效沟通，我们对 issue 有一定的格式要求，你的 issue 因为不符合要求而被自动关闭。你可以通过 issue 助手 来创建 issue 以方便我们定位错误。谢谢配合！

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.