QTreeWidget: wrong insertion order after internal drag&drop

#include <QApplication>
#include <QTreeWidget>

int main(int argc, char **argv)
{
  QApplication app(argc, argv);

  QTreeWidget widget;
  widget.setSelectionMode(QAbstractItemView::ExtendedSelection);
  widget.setDragDropMode(QAbstractItemView::InternalMove);

  for (int index = 0; index < 10; ++index)
  {
    auto item = new QTreeWidgetItem(&widget);
    item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsDragEnabled);
    item->setText(0, QString::number(index));
  }

  widget.show();

  return QApplication::exec();
}