QtTreeView crashes in opening a specific sequence of nodes.

int QTreeViewPrivate::itemHeight(int item) const
{
    if (uniformRowHeights)
        return defaultItemHeight;
    if (viewItems.isEmpty())
        return 0;
    const QModelIndex &index = viewItems.at(item).index;
    if (!index.isValid())
        return 0;
    int height = viewItems.at(item).height;
    if (height <= 0) {
        height = q_func()->indexRowSizeHint(index);
        viewItems[item].height = height;
    }
    return qMax(height, 0);
}