added rower instance database call when saving fav chart

rowers/views.py

@@ -4201,6 +4201,7 @@ def workout_flexchart3_view(request,*args,**kwargs):
     if request.method == 'POST' and 'savefavorite' in request.POST:
         workstrokesonly = request.POST['workstrokesonlysave']
         reststrokes = not workstrokesonly
+	r = Rower.objects.get(user=request.user)
         f = FavoriteChart(user=r,xparam=xparam,
                           yparam1=yparam1,yparam2=yparam2,
                           plottype=plottype,workouttype=workouttype,