#4983 Fix drag zoom on Summary and Grid cross plots

ApplicationCode/UserInterface/RiuQwtPlotZoomer.h

@@ -19,6 +19,8 @@
 
 #include "qwt_plot_zoomer.h"
 
+#include <QMouseEvent>
+
 class RiuQwtPlotZoomer : public QwtPlotZoomer
 {
 public:
@@ -35,6 +37,11 @@ public:
         return accept( currentSelection );
     }
 
+    void endZoomOperation()
+    {
+        reset();
+    }
+
 protected:
     QSizeF minZoomSize() const override
     {