That's really annoying, but not quite the same as what Notepad++ (and presumably others) do. Notepad++ just saves a cached version of the file without touching

That's really annoying, but not quite the same as what Notepad++ (and presumably others) do. Notepad++ just saves a cached version of the file without touching the original until you explicitly hit "Save". If you close the file in Notepad++ (not exit Notepad++, but tell Notepad++ to close the file thus deleting the cache), it will ask whether you want to save your work.