QGraphicsScene: Incorrect work of method QGraphicsScenePrivate::itemsAtPosition

Method QGraphicsScenePrivate::itemsAtPosition always check on intersect items and rectangle QRectF(scenePos, QPointF(1, 1))

qgraphicsscene.cpp, lines 1084-1086:

const QRectF pointRect(scenePos, QSizeF(1, 1));
if (!view->isTransformed())
        return q->items(pointRect, Qt::IntersectsItemShape, Qt::DescendingOrder);

This leads to the fact that when you select a region expands at a left and up on 1 unit in scene coordinates. (The choice of element by mouse causes the expansion of the active area in left and up directions by one from the element borders shape.)

For example:
Rect item position in scene coordinates: QRectF(5 5 10 10)
Cursor position in scene coordinates: QPointF(4.5, 4,5)

This element will be selected at mouse left bottom click. This leads to problems with interactive manipulation of small graphics items. In attachment simple example.