Firefox - When scrolling, the first column of the fixed header moves under the fixed column

[serhiitymchenko]

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

Reproduction link

https://ant.design/components/table/#components-table-demo-fixed-columns-header

Steps to reproduce

Try diagonal scroll (bottom and right at the same time), and return to the initial position, and you can see that the first column of the fixed header is cut off

What is expected?

The first column of the fixed header looks normal

What is actually happening?

The first column of the fixed header cut off after diagonal scroll

Environment	Info
antd	3.23.5
React	16.9.0
System	macOS Mojave 10.14.5
Browser	Firefox Quantum 69.0.1 (64-bit)

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It looks like something wrong with a diagonal scroll because in Chrome I can't repro it, (Chrome have scroll only in one direction at the same time).

Video how to reproduce it
link

[afc163]

Could you test new Table in antd v4? https://ant.design/components/table/

[afc163]

Closing for no response.