Hue-Saturiation tool missing and closing file with X problem

[Ofnuts]

(12-07-2019, 12:53 AM)ZeroX4 Wrote: 1 - i hit discard changes and only last active image/file will be closed
2 - now i need to hit X (in upper right corner) to do get exact same thing with 2nd image/file
3 - now there are no open images/files and hitting X now just closes gimp

I just tested with my 2.8, and in single-window mode, if you close the window, it closes all the images once you have clicked on "Discard".