Network: Center on previous size.

src/View/Network/GraphWidget.py

@@ -486,6 +486,7 @@ class GraphWidget(QGraphicsView):
 
         self.scale(1, 1)
         self.previousScale = 1
+        self.centerOn(1000.0, 1000.0)
 
         if min_size:
             self.setMinimumSize(*min_size)