Type inference with conditional for array fails for literal

TypeScript Version: 3.9.2

Search Terms: typescript infer array type conditional literal

Code

function func<T>(opt: {
  value: T;
  arrayValue: T extends any[] ? T : T[];
}) {}

func({
  value: [1, 2, 3],
  arrayValue: [1, 2, 3],
}); // throws error 

const obj = {
  value: [1, 2, 3],
  arrayValue: [1, 2, 3],
};

func(obj);

Expected behavior:
No error is thrown.

Actual behavior:
The commented function call throws the following error:

Type 'number[]' is not assignable to type 'number'.(2322)
input.ts(2, 3): The expected type comes from property 'value' which is declared here on type '{ value: number; arrayValue: number[]; }'

Playground Link: https://www.typescriptlang.org/play/#code/GYVwdgxgLglg9mABKSAeAKgPgBRwA5QBciA3gFCKIBuAhgDYgCmx6A3BYjQE5c0CeANXpMWiRgA8ojMABMAzpzB8A2gF1EAfkTpELNewC+ASlIGyZFBGzlKtBs0TKAjABpEAJjcBmVS47deQWEHZzdPRB8-Y3MIBDkoRDgAIwArRABeUg47EUdXD29ffx5+IXtiUIKIooN2C3ArZJSjdiA

Related Issues:

首先在链接的 TypeScript Playground 中复现泛型条件类型示例，并比较直接调用与使用 obj 的调用。跟踪其中涉及的类型推断和条件类型处理；当直接调用不产生错误且保留预期的推断数组类型，并为该示例添加回归测试时，即视为完成。