ObjectModel and DelegateModel use cases assertion.

1   gsignal                                                                                                     0x7ffff1347e7b 
2   abort                                                                                                       0x7ffff1349231 
3   qt_message_fatal(QtMsgType, QMessageLogContext const&, QString const&)      qlogging.cpp               1901 0x7ffff2b4c10d 
4   QMessageLogger::fatal(const char *, ...) const                              qlogging.cpp               887  0x7ffff2b50272 
5   qt_assert(const char *, const char *, int)                                  qglobal.cpp                3208 0x7ffff2b3056e 
6   QQmlTableInstanceModel::~QQmlTableInstanceModel()                           qqmltableinstancemodel.cpp 91   0x7ffff51b1321 
7   QQmlTableInstanceModel::~QQmlTableInstanceModel()                           qqmltableinstancemodel.cpp 86   0x7ffff51b1a89 
8   QQuickTableViewPrivate::syncModel()                                         qquicktableview.cpp        1629 0x7ffff783b466 
9   QQuickTableViewPrivate::syncWithPendingChanges()                            qquicktableview.cpp        1586 0x7ffff78353de 
10  QQuickTableViewPrivate::updatePolish()                                      qquicktableview.cpp        1494 0x7ffff781e95d 
11  QQuickWindowPrivate::polishItems()                                          qquickwindow.cpp           309  0x7ffff73f7663 
12  QSGThreadedRenderLoop::polishAndSync(QSGThreadedRenderLoop::Window *, bool) qsgthreadedrenderloop.cpp  1188 0x7ffff7296a4c 
13  QSGThreadedRenderLoop::handleUpdateRequest(QQuickWindow *)                  qsgthreadedrenderloop.cpp  1035 0x7ffff7297940 
14  QQuickWindow::event(QEvent *)                                               qquickwindow.cpp           1651 0x7ffff740c556 
15  QCoreApplicationPrivate::notify_helper(QObject *, QEvent *)                 qcoreapplication.cpp       1221 0x7ffff3333c09 
16  doNotify(QObject *, QEvent *)                                               qcoreapplication.cpp       1151 0x7ffff3332ed5 
17  QCoreApplication::notify(QObject *, QEvent *)                               qcoreapplication.cpp       1137 0x7ffff333309a 
18  QGuiApplication::notify(QObject *, QEvent *)                                qguiapplication.cpp        1790 0x7ffff5ac0f81 
19  QCoreApplication::notifyInternal2(QObject *, QEvent *)                      qcoreapplication.cpp       1061 0x7ffff3332bfb 
20  QCoreApplication::sendEvent(QObject *, QEvent *)                            qcoreapplication.cpp       1451 0x7ffff3334efd 
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