Child widget of QGraphicsProxyWidget does not get the GraphicsSceneMouseMove event

--- a/src/gui/graphicsview/qgraphicsproxywidget.cpp
+++ b/src/gui/graphicsview/qgraphicsproxywidget.cpp
@@ -266,8 +266,8 @@ void QGraphicsProxyWidgetPrivate::sendWidgetMouseEvent(QGraphicsSceneMouseEvent
     }

     if (!lastWidgetUnderMouse) {
-        QApplicationPrivate::dispatchEnterLeave(embeddedMouseGrabber ? embeddedMouseGrabber : widget, 0);
-        lastWidgetUnderMouse = widget;
+        QApplicationPrivate::dispatchEnterLeave(embeddedMouseGrabber ? embeddedMouseGrabber : receiver, 0);
+        lastWidgetUnderMouse = receiver;
     }