A top level item QStandardItem in QStandardItemModel doesn't return the invisible root item when it's parent() function is called. It returns NULL.

A top level item QStandardItem in QStandardItemModel doesn't return the invisible root item when it's parent() function is called. It returns NULL.
Example:

QStandardItemModel model;
QStandardItem *item = new QStandardItem("test");
model.appendRow(item);

item->parent(); //NULL, should return the invisible root item
model.invisibleRootItem(); // returns the invisible root item (items parent)
model.invisibleRootItem()->child(0); //is equal to item