I can also confirm this bug.
I use Alt+Shift for language change and Alt+Shift+Tab for backwards changing
windows.
Thus, I cannot change the windows backwards
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Keyboard layout change on hotkeys press instead of release and do not work well
with shortcuts
https://launchpad.net/bugs/36812
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Another way to do this is to press the Win Key before clicking to change
the shortcut, hit the letter and finally release the Win Key.
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Cannot use Windows key (Super_L) as part of a keyboard shortcut
https://launchpad.net/bugs/8146
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