Can't cancel an "Alt-Escape" window switch operation with the keyboard
Steps to reproduce:
-In Settings->Keyboard, set Alt+Tab as the shortcut for either "Switch windows" or "Switch applications", and set Alt+Escape as the shortcut for "Switch windows directly". -Open a few windows. -Hold the Alt key and press Escape a few times. This will begin the process of cycling through windows. -Have the desire to stop cycling through windows, and instead return to the window that had focus before Alt+Escape was first pressed.
Actual results: The only way the switching can be cancelled is to click somewhere on the screen.
Expected results: There should be a way to cancel the switching by pressing a keyboard key...but it can't be the Escape key, since it's being used to cycle through windows!
In Gnome 2, it is possible to cancel an Alt+Escape window cycling operation by pressing Tab, which makes sense: when using Alt+Tab, pressing Escape cancels the switching operation, so when using Alt+Escape, the "cancel" button and the "switch" button get swapped around.