Intellisense concatenates field description from subtypes #38848

TypeScript Version: 3.9.2.

Search Terms: intellisense concat concatenation

Code

import React from 'react';

type Base<T> = {
    /**
     * Original description
     */
    b: T;
}
type BaseClone<T> = {
    /**
     * Clone description
     */
    b: T;
}

type Combined = Base<boolean> & BaseClone<boolean>;

const Component: React.FC<Combined> = (props: Combined) => <div></div>;

<Component b />;

Expected behavior: Not sure, to be honest.

Actual behavior: Intellisense for b on Component is the concatenation of the two types: Original description Clone description.

Playground Link: Playground

This doesn't seem like a huge bug, but I just wanted to flag it in case there's behavior that makes more sense here.