Fix crash in undo dock when clearing project/closing QGIS

Fixes #38157
qgis · Oct 14, 2020 · d87d230 · d87d230
1 parent 9975892
commit d87d230
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/app/qgsundowidget.h b/src/app/qgsundowidget.h
@@ -25,6 +25,7 @@
 #include <QWidget>
 #include <QUndoView>
 #include <QUndoStack>
+#include <QPointer>
 
 #include "qgspanelwidget.h"
 #include "qgis_app.h"
@@ -93,7 +94,7 @@ class APP_EXPORT QgsUndoWidget : public QgsPanelWidget
 
   private:
     QUndoView *mUndoView = nullptr;
-    QUndoStack *mUndoStack = nullptr;
+    QPointer< QUndoStack > mUndoStack;
     QgsMapCanvas *mMapCanvas = nullptr;
 
     int mPreviousIndex = 0;