can't emit import when overwrite declare

TypeScript Version: 3.2.0-dev.201xxxxx

Search Terms:

Code

import hashSum = require('hash-sum');
import shortid = require('shortid');

declare function shortid(): string
declare function hashSum(input): string

export function hashAny(seed?, ...argv): string
{
	if (!seed)
	{
		seed = shortid()
	}
	else if (typeof seed !== 'string')
	{
		seed = hashSum(seed)
	}

	return String(seed)
}

export default hashAny;

Expected behavior:

output js file include

const hashSum = require("hash-sum");
const shortid = require("shortid");

Actual behavior:

miss require hash-sum, shortid

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
function hashAny(seed, ...argv) {
    if (!seed) {
        seed = shortid();
    }
    else if (typeof seed !== 'string') {
        seed = hashSum(seed);
    }
    return String(seed);
}
exports.hashAny = hashAny;
exports.default = hashAny;

Playground Link:

Related Issues:

No source file or test is named. Reproduce the TypeScript 3.2 behavior using the provided imports and declarations, then trace the compiler's CommonJS import emission for overwritten declarations. Done means the generated JavaScript includes require calls for both hash-sum and shortid while preserving the shown runtime behavior.