// this is the first time tab is pressed -> build up the completion list and it's iterator
QModelIndex currentIndex = Client::bufferModel()->currentIndex();
if(!currentIndex.data(NetworkModel::BufferIdRole).isValid())
// this is the first time tab is pressed -> build up the completion list and it's iterator
QModelIndex currentIndex = Client::bufferModel()->currentIndex();
if(!currentIndex.data(NetworkModel::BufferIdRole).isValid())