table use 'sort' and 'title' with 'span' and 'setState' in onChange callback， always "ascend"

[lchunxiu]

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

Reproduction link

Steps to reproduce

点击name表头，sorter不会切换

What is expected?

sorter在 ascend descend '' 之前切换

What is actually happening?

sorter不会切换

Environment	Info
antd	3.23.4
React	3.23.4
System	mac
Browser	chrome 76

[ant-design-bot]

Hello @lchunxiu, we use GitHub issues to trace bugs or discuss plans of Ant Design. So, please don't ask usage questions here. You can try to ask questions on Stack Overflow or Segment Fault, then apply tag antd and react to your question.

你好 @lchunxiu，Ant Design Issue 板块是用于 bug 反馈与需求讨论的地方。请勿询问如何使用的问题，你可以试着在 Stack Overflow 或者 Segment Fault 中提问（记得添加 antd 和 react 标签哦~）。

[shaodahong]

https://ant.design/components/table-cn/#components-table-demo-ajax

[afc163]

Add column key or move column out of render.

[lchunxiu]

@afc163 it works,thank you!

[afc163]

#19398
#19636

[xiaosu12138]

I have the same problem in v3.26.5
maybe it is better to change '(a && b && a.key && a.key === b.key)' to '(a && b getColumnKey(a)=== getColumnKey(b))' on line 66 in 'ant-design/components/table/Table.tsx'.
because key is not required