On El Capitan (10.11.4) I somehow got into a state where using the key combination shift+option+key outputs accented or special characters. For example
shift+option+j : Ô
I have those key combos mapped to some useful commands in my text editor (RubyMine/IntelliJ), but instead of those commands working, I now just get the special character input. I assume it must be a built in OS X option (I've tried various keyboards) but I can't find any way to disable it. Any ideas?