next = chan->next;
for(chanuser = getChannelUsers(chan, NULL); chanuser; chanuser = next_chanuser) {
next_chanuser = getChannelUsers(chan, chanuser);
next = chan->next;
for(chanuser = getChannelUsers(chan, NULL); chanuser; chanuser = next_chanuser) {
next_chanuser = getChannelUsers(chan, chanuser);