refresh waypoints each time the mark passing panel is opened

Change-Id: I0653b48f717a7b7ff97365288eae7475857005c3

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/client/shared/charts/EditMarkPassingsPanel.java

@@ -279,12 +279,12 @@ public class EditMarkPassingsPanel extends AbsolutePanel implements Component<Ab
         buttonPanel.add(removeSuppressedPassingButton);
         buttonPanel.add(selectCompetitorLabel);
         enableButtons();
-        refreshWaypoints();
     }
     
     @Override
     public void setVisible(boolean visible) {
         processCompetitorSelectionChange(visible);
+        refreshWaypoints();
         super.setVisible(visible);
     }