commit be1a5d484c70f4f6a383150810afbfbb367db2ac
Author: Eike Hein <hein@kde.org>
Date:   Tue Sep 3 20:29:23 2013 +0200

    Discard the recorded events in the item-local handlers.
    
    Solves problems with identical events being ignored due to
    QGraphicsView's reuse of QGraphicsSceneMouseEvent instances.
    
    CCMAIL:rdieter@fedoraproject.org
    BUG:324470
    BUG:324471

diff --git a/plasma/declarativeimports/qtextracomponents/mouseeventlistener.cpp b/plasma/declarativeimports/qtextracomponents/mouseeventlistener.cpp
index b534845..36530e0 100644
--- a/plasma/declarativeimports/qtextracomponents/mouseeventlistener.cpp
+++ b/plasma/declarativeimports/qtextracomponents/mouseeventlistener.cpp
@@ -90,6 +90,7 @@ bool MouseEventListener::containsMouse() const
 void MouseEventListener::mousePressEvent(QGraphicsSceneMouseEvent *me)
 {
     if (m_lastEvent == me) {
+        m_lastEvent = 0;
         return;
     }
 
@@ -112,6 +113,7 @@ void MouseEventListener::mousePressEvent(QGraphicsSceneMouseEvent *me)
 void MouseEventListener::mouseMoveEvent(QGraphicsSceneMouseEvent *me)
 {
     if (m_lastEvent == me) {
+        m_lastEvent = 0;
         return;
     }
 
@@ -122,6 +124,7 @@ void MouseEventListener::mouseMoveEvent(QGraphicsSceneMouseEvent *me)
 void MouseEventListener::mouseReleaseEvent(QGraphicsSceneMouseEvent *me)
 {
     if (m_lastEvent == me) {
+        m_lastEvent = 0;
         return;
     }
 
@@ -138,6 +141,7 @@ void MouseEventListener::mouseReleaseEvent(QGraphicsSceneMouseEvent *me)
 void MouseEventListener::wheelEvent(QGraphicsSceneWheelEvent *we)
 {
     if (m_lastEvent == we) {
+        m_lastEvent = 0;
         return;
     }