Set "__esModule" to true unless "addDefaultProperty" is true

[SteinNs]

The plugin helps us set

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = 'foo';
module.exports = exports['default'];

So we can only usemod = require('xx') but not mod = require('xx').default any more if we don't set "addDefaultProperty" to true.
However, both
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } in Babel and

__webpack_require__.n = function(module) {
/******/ 		var getter = module && module.__esModule ?
/******/ 			function getDefault() { return module['default']; } :
/******/ 			function getModuleExports() { return module; };
/******/ 		__webpack_require__.d(getter, 'a', getter);
/******/ 		return getter;

in webpack imports a module harmonly depending on whethermodule.__esModule is true which may import undefined from module.default.

So will it better set "__esModule" to false when "addDefaultProperty" is false in order to tell Babel and webpack import module from module.exports instead of module.exports.default?