After exporting to a file (to svg or jpg for example) of an already up-to-date-saved afdesign-file, Affinity thinks something has changed to the file (even though nothing has changed), and asks us to save the file when closing the tab. Even if we didn't change the export settings.
This makes this confirmation box unreliable and therefore error prone, as we can't tell by this message if something really has changed, or it's this issue again just saying something has changed, but is not.