Comment 2 for bug 747246

StacktraceTop:
 same_key (this=0xcf9b28, ahp=0x7fffb242fc3c, akey=<value optimized out>) at ../../include/QtCore/../../src/corelib/tools/qhash.h:225
 QHash<QGesture*, QHashDummyValue>::findNode (this=0xcf9b28, ahp=0x7fffb242fc3c, akey=<value optimized out>) at ../../include/QtCore/../../src/corelib/tools/qhash.h:885
 insert (this=0xcf9ac0, target=0x12bb730, type=Qt::PanGesture) at ../../include/QtCore/../../src/corelib/tools/qhash.h:757
 insert (this=0xcf9ac0, target=0x12bb730, type=Qt::PanGesture) at ../../include/QtCore/../../src/corelib/tools/qset.h:176
 QGestureManager::cleanupCachedGestures (this=0xcf9ac0, target=0x12bb730, type=Qt::PanGesture) at kernel/qgesturemanager.cpp:178