QQuickItemViewTransitionAttached: Avoid dangling pointers

The items referred to here can be deleted when the animation finishes.
Use QPointer to zero them in that case.

Pick-to: 5.15 6.2
Fixes: QTBUG-84196
Change-Id: I695c9e91bd29d0583e4871d03ee946c40aa8a595
Reviewed-by: Fabian Kosmale <[email protected]>
Reviewed-by: Mitch Curtis <[email protected]>
Reviewed-by: Andrei Golubev <[email protected]>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/quick/items/qquickitemviewtransition_p.h b/src/quick/items/qquickitemviewtransition_p.h
index a1f02b79db..253f3c6c70 100644
--- a/src/quick/items/qquickitemviewtransition_p.h
+++ b/src/quick/items/qquickitemviewtransition_p.h
@@ -226,7 +226,7 @@ private:
     QList<int> m_targetIndexes;
     QList<QObject *> m_targetItems;
 
-    QQuickItem *m_item;
+    QPointer<QQuickItem> m_item;
     int m_index;
 };