message: Make sure to refresh model if only children were added
diff: @@ -557,7 +557,7 @@ void RDTreeWidget::endUpdate()
  {
  m_queueUpdates = false;
  - if(m_queuedRoles)
  + if(m_queuedRoles || m_queuedChildren)
  {
  // if we updated multiple different trees we can't issue a single dataChanged for everything
  // under a parent. Refresh the whole model.
  