Created attachment 135625 [details]
Screencast

SUMMARY
If I try to set the Alt+Print shortcut for some operation (e.g. Spectacle - take screenshot of the active window), the shortcut isn't registered after I release Print. Then, whatever key I press next, even in another window, is registered as the shortcut.


STEPS TO REPRODUCE
1. Launch Global Shortcuts -> Spectacle -> Capture Active Window
2. Click the "None" button next to Custom
3. Press Alt
4. Press Print
5. Release Print and Alt
6. Click in another window
7. Type something

OBSERVED RESULT
The shortcut button says "Input" after I release Alt, then registers the first key I press in the other window.