Export doesn't include unpublished modules

Issue

Unpublished HTML modules seem to be included in the export packages, but the content is actually imported as an empty structure. 

To reproduce the problem:

1. Create an HTML module on a page and add some text to it.
2. Without publishing it, create a full export of the site.
3. Import it on a clean portal.
   • The HTML module is on the page, but it is empty.

Solution

This is the intended behavior, by design. To ensure a module is imported into the new portal, always publish the page before exporting it.