QHash<UserCategoryItem *, QList<IrcUser *> >::const_iterator catIter = categories.constBegin();
while (catIter != categories.constEnd()) {
catIter.key()->addUsers(catIter.value());
QHash<UserCategoryItem *, QList<IrcUser *> >::const_iterator catIter = categories.constBegin();
while (catIter != categories.constEnd()) {
catIter.key()->addUsers(catIter.value());