Choose "Save to Disk" in the editor window, the export window shows, close it, and the press Command+Q, and you end up with this:

I remember being able to reproduce this before, but I wasn't able to on the latest version.
Just to make sure, steps I tried are:
I'm still able to reproduce by following the steps @sindresorhus provided.
I was canceling the export instead of queueing it. I was finally able to repro. Will be working on this