Table的columns属性发生变化时，设置scroll属性，页面报错

[admire7444]

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

Reproduction link

Steps to reproduce

please see the page link above
请看重现链接

What is expected?

show a normal table
显示正常表格

What is actually happening?

page error, according to the error log, i think the error was that the filterDropdown can not find the mount node
页面报错，根据排查，应该是filterDropdown渲染的节点找不到引起的问题

Environment	Info
antd	3.24.1
React	16.9.0
System	windows10
Browser	Chrome 77.0.3865.120

---

i run 'yarn upgrade' in 2019.10.16, and i got the error, in the pervious version, every thing is ok
2019.10.16号执行yarn upgrade后，出现该问题，此前版本无该问题

[yoyo837]

https://github.com/react-component/trigger/blob/master/src/index.tsx#L518

mountNode.appendChild(popupContainer);

TypeError: Cannot read property 'appendChild' of null.

[afc163]

@zombieJ 应该和 #19205 有关系，我看不动了，你来看一下。

[zombieJ]

https://github.com/ant-design/ant-design/pull/18726/files#diff-9e758b938531cabc07bf62e7314948fdR509

这里把 findDOMNode 换成了 ref.tableNode 而 tableNode 是空导致的。我看看怎么修。