Optional chaining not working with void type

Demo

playground demo

TypeScript source with nightly version 3.8.0-dev.20191224

type Address = {
    city: string
}

type User = {
    home: Address | undefined
    work: Address | void
}

declare let u: User

u.home?.city
u.work?.city

JavaScript output the same for both "work" and "home" properties

"use strict";
var _a, _b;
(_a = u.work) === null || _a === void 0 ? void 0 : _a.city;
(_b = u.home) === null || _b === void 0 ? void 0 : _b.city;

Bug

If you run the code above, you will see that for u.home?.city there are no errors.
But for u.work?.city there is an error:

Error: Property 'city' does not exist on type 'void | Address'

Expectation

Optional chaining works for both 'undefined' and 'void' types the same way.

Inizia con la demo del playground collegata e il codice sorgente TypeScript che mostra Address | undefined accanto a Address | void. Riproduci la diagnostica per u.work?.city, confrontala con u.home?.city e con il JavaScript generato, e considera l’issue completata quando entrambe le forme superano il controllo dei tipi in modo coerente senza regressioni nell’output.