Rollup ES6 access module in multiple bundles

Question

How can I reuse code from another bundle so I don't end up bundling that code again? For example:

One.js

import $ from './jQuery';
import Something from './Something';
Something.do($('.test'));

After Rollup: bundleOne.js

(function () {
    var $ = function() { // ... }();
    var Something = function() { // ... }();
    Something.do($('.test'));
}());

Two.js

import $ from './jQuery';
$('.testTwo').addClass('test');

After Rollup: bundleTwo.js

(function () {
    var $ = function() { // ... }();
    $('.testTwo').addClass('test');
}());

index.html

<script type="text/javascript" src="bundleOne.js"></script>
<script type="text/javascript" src="bundleTwo.js"></script>

The above code causes Rollup to bundle jQuery twice. How can I access jQuery from bundleOne.js in bundleTwo.js and prevent Rollup from including jQuery in bundleTwo.js? There are multiple modules I'd like to reuse in the second bundle without including them again.