TreeSelect checkable, popover shift position on list interaction

[violabg]

Version

2.13.0

Environment

os all version, all browsers

Reproduction link

http://dev.mediacross.it/treeselect/

Steps to reproduce

TreeSelect with checkable set to true and showCheckedStrategy to SHOW_PARENT
list of nested data that is longer then the height of the browser window.
Start to select checkboxs at various depth of the tree.

What is expected?

the popover list should stay in place

What is actually happening?

the popover moves, losing the position of what you were checking, making very difficult to use the component, especially on mobile devices

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the key point to reproduce the bug is to have the popover longer then the height of the browser window.

[afc163]

#3438

https://github.com/ant-design/ant-design/wiki/FAQ#select-dropdown-will-scroll-with-page

[violabg]

That is not the issue I have described, I'm not talking about scrolling the page and wanted to have a fixed popover.
The issue is that when I click a nested checkbox the popover shift position.
The same happens when open/close a node
Sorry if it wasn't clear before