我的Qt 4.8插槽有问题，这是以这种方式连接的：
connect(ui->objectTree->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)), this, SLOT(syncGuiWithTreeSelection(const QItemSelection&, const QItemSelection&)));
插槽有这个签名：
void MyClass::syncGuiWithTreeSelection(const QItemSelection &itemSelected, const QItemSelection &itemDeselected)
在上面的插槽中，我想访问所选的索引：
const QModelIndexList &indexes = itemSelected.indexes();
哪个很好用但是在插槽的末尾，当调用QModelIndexList的析构函数时，会显示DEBUG_ASSERTION_FAILURE。调用堆栈看起来像这样：
msvcr90d.dll!operator delete(void * pUserData=0x03673968) Line 52 + 0x51 bytes C++
MyClass.exe!QModelIndex::`scalar deleting destructor'() + 0x32 bytes C++
MyClass.exe!QList<QModelIndex>::node_destruct(QList<QModelIndex>::Node * from=0x0371c4c4, QList<QModelIndex>::Node * to=0x0371c4c8) Line 431 + 0x2f bytes C++
MyClass.exe!QList<QModelIndex>::free(QListData::Data * data=0x0371c4b0) Line 759 C++
MyClass.exe!QList<QModelIndex>::~QList<QModelIndex>() Line 733 C++
MyClass.exe!MyClass::syncGuiWithTreeSelection(const QItemSelection & itemSelected={...}, const QItemSelection & itemDeselected={...}) Line 853 + 0xc bytes C++
MyClass.exe!MyClass::qt_static_metacall(QObject * _o=0x001ef69c, QMetaObject::Call _c=InvokeMetaMethod, int _id=49, void * * _a=0x001eca04) Line 247 + 0x20 by
如何才能访问所选索引？
亲切的问候，重新加入