Don't call virtual functions with data from an old model

Change-Id: I4f1ec56ce722110042f72761bbc2976e580b7149
Reviewed-by: David Faure <david.faure@kdab.com>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/src/widgets/itemviews/qabstractitemview.cpp b/src/widgets/itemviews/qabstractitemview.cpp
index cb40eae9a2..d36431c716 100644
--- a/src/widgets/itemviews/qabstractitemview.cpp
+++ b/src/widgets/itemviews/qabstractitemview.cpp
@@ -769,8 +769,10 @@ void QAbstractItemView::setSelectionModel(QItemSelectionModel *selectionModel)
     QModelIndex oldCurrentIndex;
 
     if (d->selectionModel) {
-        oldSelection = d->selectionModel->selection();
-        oldCurrentIndex = d->selectionModel->currentIndex();
+        if (d->selectionModel->model() == selectionModel->model()) {
+            oldSelection = d->selectionModel->selection();
+            oldCurrentIndex = d->selectionModel->currentIndex();
+        }
 
         disconnect(d->selectionModel, SIGNAL(selectionChanged(QItemSelection,QItemSelection)),
                    this, SLOT(selectionChanged(QItemSelection,QItemSelection)));