Regression on SetRequired

[raphaelboukara]

Bug description

Let's take the following code has an example:

import type { PackageJson, SetRequired } from 'type-fest';

type PackageJsonVersion = PackageJson['version'];
type PackageJsonVersionRequired = SetRequired<PackageJson, 'version'>['version'];

received

With [email protected] I get:

type PackageJsonVersion = string | undefined

type PackageJsonVersionRequired = ((string | number | boolean | JsonObject | JsonValue[] | readonly JsonValue[]) & (string | number | boolean | JsonObject | JsonValue[] | readonly JsonValue[] | undefined)) | null

expected

With [email protected] I get:

type PackageJsonVersion = string | undefined

type PackageJsonVersionRequired = string

Repro

https://www.typescriptlang.org/play/?#code/JYWwDg9gTgLgBDAnmApnA3nACgQwMYDWOA5igFIDOEAdgDRwDKKMASigI4CuwUKAJnAC+cAGZQIIOAHIkqALQiUFGFIDcAWABQW2WlyES5KtQBqKKBWA04AXmz4ipSjQDaUgG7nLNKQF0Nmrr2Bk7GZhZW1GxcPPy2jMzR3Lx8ADz6jkY09B5ekVIAfG6eET7+QA

[som-sm]

This is related to index signatures, should be fixed with this PR.

[raphaelboukara]

Thanks a lot
Fixed in 4.31.0.