ES6 module immediately exported var clash with local "exports" variable

TypeScript Version: 3.5.1 (playground), 3.5.3

Search Terms:
es6 module exports object scope declare declaration overwrite

Code

export const a = 1
function b () {
    const exports = 2
    console.log(a)
}
b()

Expected behavior:
output from babel with es2015 preset
https://babeljs.io/repl#?babili=false&browsers=&build=&builtIns=false&spec=false&loose=false&code_lz=KYDwDg9gTgLgBAYwgOwM7wIZwLxwIwBQAZgK7IIwCWKcARnABQCUcA3gXJ4iunKJLFQ44AJg5ckaCABtgAOmkQA5gwxMCAXwK1mQA&debug=false&forceAllTransforms=false&shippedProposals=false&circleciRepo=&evaluate=false&fileSize=false&timeTravel=false&sourceType=module&lineWrap=false&presets=es2015&prettier=false&targets=&version=7.5.5&externalPlugins=

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.a = void 0;
var a = 1;
exports.a = a;

function b() {
  var exports = 2;
  console.log(a);
}

b();

Actual behavior:
console.log is referencing the local exports.a instead of the global const a

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.a = 1;
function b() {
    var exports = 2;
    console.log(exports.a);
}
b();

However, if I split the export const into two, it will work.

const a = 1
export { a }

Playground Link:
http://www.typescriptlang.org/play/?target=1#code/KYDwDg9gTgLgBAYwgOwM7wIZwLxwIwCwAUAGYCuyCMAlinAEZwAUAlHAN7FzeIrpyhIsVDjgAmLjyRoIAG2AA6WRADmTDC2IBfYvVZA

Related Issues: can't find

Reproduce the provided code in the TypeScript playground and compare its emitted JavaScript with the Babel output linked in the issue. Trace the handling of an immediately exported variable and the nested local exports binding; done means the generated console.log still references the module-level value rather than the local binding.