fixed bug in flex chart

rowers/views.py

@@ -6672,8 +6672,11 @@ def workout_flexchart3_view(request,*args,**kwargs):
             yparam2 = 'hr'
 
     if not request.user.is_anonymous():
+        r = getrower(request.user)
         if favoritenr>=0 and r.showfavoritechartnotes:
             favoritechartnotes = favorites[favoritenr].notes
+        else:
+            favoritechartnotes = ''
     else:
         favoritechartnotes = ''
         favoritenr = 0