QAbstractItemView::commitData() re-installs item delegate's event filter on editor

QAbstractItemView::commitData() re-installs the item delegate's event filter on the editor. This may conflict if a custom event filter was installed on the editor in a QItemDelegate subclass, for instance.

After commitData() is called, the item delegate's event filter, as the last event filter to be installed, will be activated first, and not the custom event filter which would be expected.