``` const a=1, b=2, c=3, d=4; export { a, b, c}; export default d; ``` if you try to bundle this, the result is: ``` module.exports=4; //# sourceMappingURL=test3.js.map ``` I'd expect: ``` module.exports.a=1; module.exports.b=2; module.exports.c=3; module.exports.default=4; //# sourceMappingURL=test3.js.map ``` it exports everything only on the `esm` build. Is there any flag to turn on?