TypeError: Cannot read property 'getParent' of undefined

[saresh-krish]

Hi
I got this error in when i click the Modal popup event .
I thick this problem come from the latest package of 'rc-util'.
if (!windowIsUndefined && this.getParent() === document.body) { // 离开时不会 render， 导到离开时数值不变，改用 func 。。 openCount = visible && openCount ? openCount - 1 : openCount; }
path: node_modules/rc-util/es/PortalWrapper.js

how you fixed this?
i got the same issue on Liver server and local.
any idea to fix this problem.

Environment

"antd": "^4.1.2",
"react": "^16.13.1",
System - Ubuntu 18.04.3 LTS
Browser - Version 79.0.3945.130 (Official Build) (64-bit)

[jljsj33]

b64a03b