Popover causes jagging when content is big enough.

[loia5tqd001]

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

Reproduction link

Steps to reproduce

1. Go to the code sandbox
2. Hover on the Hover me button, you will see the jagging behavior of the scrollbar
   (its state instead of transformed from hide -> show it was hide -> show -> hide -> show)

What is expected?

The scrollbar appears smoothly from hide -> show instead of jagging like hide -> show -> hide -> show)

What is actually happening?

I guess it's because of autoAdjustOverflow

Environment	Info
antd	4.16.5
React	17.0.0
System	Windows 10
Browser	Chrome

---

I've also asked this question on Stackoverflow at here: https://stackoverflow.com/questions/68064451/popover-of-ant-design-causes-jagging-when-content-is-big-enough-how-to-fix

You may want to give it a peek in order to see how other people say about it.