version 2.3.3 file which is Cascader.js set mergedFieldNames's value to INTERNAL_VALUE_FIELD, so that when app run getting warning: 'key or value with TreeNode must be the same or you can remove one of them.'

[ForP]

[ForP]

https://github.com/react-component/cascader/blob/v2.3.3/src/Cascader.tsx

const mergedFieldNames = React.useMemo(
() => ({
...outerFieldNames,
value: INTERNAL_VALUE_FIELD,
}),
[outerFieldNames],
);

[galaxynova1999]

known issue see #230 #230
It has been fixed in version 3.0 , but @3 is in unstable beta stage && has completely removed above INTERNAL_VALUE_FIELD logic && code already been merged in master .
i think it won't release soon.