[Reg]: crash in SpriteSequence if goalSprite is referenced before it's created

Program received signal SIGSEGV, Segmentation fault.
0x00007fffecb5a9a2 in QListData::size (this=0x10)
    at /work/Qt/qt-5.3.1/qtbase/include/QtCore/../../src/corelib/tools/qlist.h:96
96	    inline int size() const { return d->end - d->begin; }
(gdb) bt
#0  0x00007fffecb5a9a2 in QListData::size (this=0x10)
    at /work/Qt/qt-5.3.1/qtbase/include/QtCore/../../src/corelib/tools/qlist.h:96
#1  0x00007fffecd37b98 in QList<QQuickStochasticState*>::count (this=0x10)
    at /work/Qt/qt-src-5.3.1/qtbase/include/QtCore/../../src/corelib/tools/qlist.h:292
#2  0x00007fffecd3bc5f in QQuickStochasticEngine::stateIndex (this=0x0, s=...) at items/qquickspriteengine_p.h:209
#3  0x00007fffecd3a71d in QQuickSpriteSequence::setGoalSprite (this=0x596080, sprite=...)
    at items/qquickspritesequence.cpp:254
#4  0x00007fffecdd62fa in QQuickSpriteSequence::qt_metacall (this=0x596080, _c=QMetaObject::WriteProperty, _id=2, 
    _a=0x7fffffffbda0) at .moc/moc_qquickspritesequence_p.cpp:223
#5  0x00007ffff6e6b08b in QMetaObject::metacall (object=0x596080, cl=QMetaObject::WriteProperty, idx=43, 
    argv=0x7fffffffbda0) at kernel/qmetaobject.cpp:308
#6  0x00007ffff7b6491e in QQmlObjectCreator::setPropertyValue (this=0x7fffffffce10, property=0x7fffe003b388, 
    binding=0x7fffe003f9a8) at qml/qqmlobjectcreator.cpp:365
#7  0x00007ffff7b688a8 in QQmlObjectCreator::setPropertyBinding (this=0x7fffffffce10, property=0x7fffe003b388, 
    binding=0x7fffe003f9a8) at qml/qqmlobjectcreator.cpp:983
#8  0x00007ffff7b66c0c in QQmlObjectCreator::setupBindings (this=0x7fffffffce10, bindingsToSkip=...)
    at qml/qqmlobjectcreator.cpp:724
#9  0x00007ffff7b6a746 in QQmlObjectCreator::populateInstance (this=0x7fffffffce10, index=0, instance=0x0, 
    bindingTarget=0x61fef0, valueTypeProperty=0x0, bindingsToSkip=...) at qml/qqmlobjectcreator.cpp:1314
#10 0x00007ffff7b69a83 in QQmlObjectCreator::createInstance (this=0x7fffffffce10, index=0, parent=0x0, isContextObject=true)
    at qml/qqmlobjectcreator.cpp:1158
#11 0x00007ffff7b63cef in QQmlObjectCreator::create (this=0x7fffffffce10, subComponentIndex=-1, parent=0x0, interrupt=0x0)
    at qml/qqmlobjectcreator.cpp:219
#12 0x00007ffff7b692b8 in QQmlObjectCreator::createInstance (this=0x474d30, index=3, parent=0x520ae0, isContextObject=false)
    at qml/qqmlobjectcreator.cpp:1075
#13 0x00007ffff7b6710e in QQmlObjectCreator::setPropertyBinding (this=0x474d30, property=0x7fffe003f348, 
    binding=0x7fffe004ed48) at qml/qqmlobjectcreator.cpp:765
#14 0x00007ffff7b66c0c in QQmlObjectCreator::setupBindings (this=0x474d30, bindingsToSkip=...)
    at qml/qqmlobjectcreator.cpp:724
#15 0x00007ffff7b6a746 in QQmlObjectCreator::populateInstance (this=0x474d30, index=0, instance=0x0, 
    bindingTarget=0x44bb90, valueTypeProperty=0x0, bindingsToSkip=...) at qml/qqmlobjectcreator.cpp:1314
#16 0x00007ffff7b69a83 in QQmlObjectCreator::createInstance (this=0x474d30, index=0, parent=0x0, isContextObject=true)
    at qml/qqmlobjectcreator.cpp:1158
#17 0x00007ffff7b63cef in QQmlObjectCreator::create (this=0x474d30, subComponentIndex=-1, parent=0x0, interrupt=0x0)
    at qml/qqmlobjectcreator.cpp:219
#18 0x00007ffff7ad7314 in QQmlComponentPrivate::beginCreate (this=0x522180, context=0x521360) at qml/qqmlcomponent.cpp:884
#19 0x00007ffff7ad6f81 in QQmlComponent::beginCreate (this=0x51c7d0, publicContext=0x51ca90) at qml/qqmlcomponent.cpp:833
#20 0x00007ffff7ad6edd in QQmlComponent::create (this=0x51c7d0, context=0x51ca90) at qml/qqmlcomponent.cpp:793
#21 0x00007ffff7b5bb9a in QQmlApplicationEnginePrivate::_q_finishLoad (this=0x439d30, o=0x51c7d0)
    at qml/qqmlapplicationengine.cpp:138
#22 0x00007ffff7b5b94f in QQmlApplicationEnginePrivate::startLoad (this=0x439d30, url=..., data=..., dataFlag=false)
    at qml/qqmlapplicationengine.cpp:117
#23 0x00007ffff7b5bea3 in QQmlApplicationEngine::load (this=0x7fffffffe030, url=...) at qml/qqmlapplicationengine.cpp:254
#24 0x0000000000400cd1 in main (argc=1, argv=0x7fffffffe178) at main.cpp:9