Studio doesn't save my models

If you've ever edited Models in Studio, you've seen a screen that looks like this:

If you navigate away from the Model tab, you might return to a screen like this:

It appears that your models are not being saved. However, so long as you remembered to hit the Save button (in the top right), they are being saved. You can tell this is the case in the second screenshot, because "music_ontology" is selected as the model (see the top middle-left of the screen). You can view and change your selected model with this dropdown, or you can get the window with the models (from the first screenshot) by changing to a different database and then changing back to your original database.