QListView - flicker when dropping items on themselves - Mac OS X/Carbon

When using dragDropMode QAbstractItemView::InternalMove in a QListView, flickering occurrs when dropping items on themselves.
This seems not to happen if the item is dragged aligned with itself, but if trying to drop from slightly above or below the item, then it flickers.
As dropping items on themselves in this mode is not allowed, one would expect this to be a "no-op".