- Create unsaved or modified versions of saved documents -> close Sublime completely (no prompt, documents go to cache) -> open download.txt -> new window has tabs for the cached documents and a new tab for download.txt
- Create unsaved or modified versions of saved documents -> open download.txt in a new Sublime window (2 windows open now) -> try to close unsaved/modified documents -> get popup warning that changes will not be saved (because it isn't the last window so they won't be saved for the session persistence)
But both of these are safe (i.e. you don't lose anything unless you click the button saying you want to lose something) so there must be another path to failure I'm missing.
Though you could use a shortcut to quit the editor instead of closing windows