Functionally there's only one corner case where it doesn't work: if the shortcut key is some accented character, it's not displayed as a shortcut. For example if you edit /usr/share/unity/places/applications.place and make the shortcut key "é", it will not work (the key is not even grabbed).
Functionally there's only one corner case where it doesn't work: if the shortcut key is some accented character, it's not displayed as a shortcut. For example if you edit /usr/share/ unity/places/ applications. place and make the shortcut key "é", it will not work (the key is not even grabbed).