syntax error with export default

[alexlamsl]

$ cat in/test.ts
export default function() {} console.log(42);

$ sucrase in -d out -t typescript,imports
in/test.ts -> out/test.js

$ node -v
v14.16.0

$ node out/test.js
/Users/alexlamsl/Desktop/UglifyJS/tmp/out/test.js:1
"use strict";Object.defineProperty(exports, "__esModule", {value: true});exports. default = function() {} console.log(42);
                                                                                                          ^^^^^^^

SyntaxError: Unexpected identifier
    at wrapSafe (internal/modules/cjs/loader.js:979:16)

$ mv in/test.ts in/test.mjs
$ node in/test.mjs
42

[FDiskas]

It is expected behavior?
https://github.com/search?q=repo%3Aalangpierce%2Fsucrase+%22exports.+default%22&type=code

The space after exports also visible in this demo https://sucrase.io/#compareWithTypeScript=true