Yes, i was aware of that. What i find slightly confusing is the fact that typing a ( while in completition mode will happily insert the character (actually, it 'll insert both ( and ), but that's a feature of paredit) and still stay in completition mode. But I'll have a look at the code as soon as I can spare some time.
Actually it should not stay in completion mode if the keymap is configured that way and the completion window should disappear. Otherwise you are just editing the symbol.
Thanks for taking a look at it!
Cheers, levy