Don't focus on cursor after stretching.

qtgui/scoreview.py

@@ -110,8 +110,8 @@ class ScoreView(QtWidgets.QGraphicsView):
     def stretchXCoordinates(self, factor):
         """Cumulative factor, multiplication"""
         self.scoreScene.stretchXCoordinates(factor)
-        if not self.mode() == "block":
-            self.centerOnCursor(None)
+        #if not self.mode() == "block":
+        #    self.centerOnCursor(None)
 
     def zoom(self, scaleFactor:float):
         """Scale factor is absolute"""