Fix an error occuring in onChangeNick of irc-view component.
Fix an error occuring in onChangeNick of irc-view component.

Shouldn't need to get an individual channel.

KokoIRC/koko,alienxp03/koko,woss/koko,hachibasu/koko,noraesae/koko,noraesae/koko,KokoIRC/koko,woss/koko,woss/koko,alienxp03/koko,hachibasu/koko,alienxp03/koko,KokoIRC/koko,hachibasu/koko,noraesae/koko