Comment 21 for bug 23293

Unfortunately, it does not use the same window so you end up with several windows you need to close.

I used to just close the window as soon as it came up since I usually use the command line in a terminal window and then umount via the icon on the desktop. But I've accessed the mount via the Places menu recently (and also tried using the GUI to do the copies) and ended up with this annoyance.

I ended up here after gogling for how I could configure Nautilus to close the window.