Bug while importing packages with lazy loading

I have configured webpack and it works well, but when i try to import [jagi:astronomy](https://atmospherejs.com/jagi/astronomy) empty object is the result of the import. At the same time i can import reywood:publish-composite and other packages. Example

```
import astronomy from 'meteor/jagi:astronomy';
import { publishComposite } from 'meteor/reywood:publish-composite';

console.log(astronomy, publishComposite); // print: {} [Function: publishComposite]
```

Any ideas why it happened and how to fix it
Thx!

Start by reproducing the example imports from the issue, comparing the empty `meteor/jagi:astronomy` result with the working `meteor/reywood:publish-composite` import. Trace how lazy-loaded Meteor packages are handled and identify why the astronomy export is empty; done means the import returns the expected package value without breaking the working import.

Written by the indexing model from the issue text.