Guys, I think I've found a bug.
Steps to reproduce:
1. Go to Options -> Controls
2. Map something to some button (basically, make some change)
3. Try to map something else to Escape key
What happens now is that two dialogs pop up: Save changes and that Escape is already mapped to something. Whether you accept or cancel, the "Already mapped" dialog goes away, but the Save changes is still there, it's inactive and you cannot close it, cannot click on any option there or basically cannot click anywhere else. ALT+F4 is your only option.
Regards and guys, you are still awesome!
--M.
