TreeView does not show new rows after layoutChanged()

TreeView should show new rows after layoutChanged() is called. QTreeView, QListView, and ListView do this and the documentation says that using layoutChanged() is a valid way of updating the views after adding rows.

"This sequence can be used for any structural update in lieu of the more high-level and convenient protected methods."

http://doc.qt.io/qt-5/model-view-programming.html

TreeView does not show new rows after this sequence in the model:

• Emit the layoutAboutToBeChanged() signal
• Add rows to the internal data which represents the structure of the model.
• Update persistent indexes using changePersistentIndexList()
• Emit the layoutChanged() signal.

Attached is a demo application that shows that QTreeView, QListView, and ListView update the view but that TreeView does not.