QAbstractItemModel::dataChanged() gained an optional role parameter
with Qt5 which was not filled within QListWidgetItem/QStandardItem
setData() functions
Task-number: QTBUG-55903
Task-number: QTBUG-63766
Change-Id: I4da9346ef8401cc8633dc4b2ea7d00451d1e3942
Reviewed-by: Luca Beldi <v.ronin@yahoo.it>
Reviewed-by: Thorbjørn Lund Martsum <tmartsum@gmail.com>