From 0de73b7e38cd4d029a0ea6ac0a625b04407f4fc8 Mon Sep 17 00:00:00 2001
From: Andreas Kloeckner <inform@tiker.net>
Date: Sun, 21 Dec 2014 11:44:15 -0600
Subject: [PATCH] Don't make a grade record if all it'll indicate is that the
 grade isn't yet available, and no grade came before it

---
 course/flow.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/course/flow.py b/course/flow.py
index ed6a0d93..8827aab0 100644
--- a/course/flow.py
+++ b/course/flow.py
@@ -528,6 +528,10 @@ def grade_flow_session(fctx, flow_session, current_access_rule,
                     and previous_grade_change.max_points == gchange.max_points
                     and previous_grade_change.comment == gchange.comment):
                 do_save = False
+        else:
+            # no previous grade changes
+            if points is None:
+                do_save = False
 
         if do_save:
             gchange.save()
-- 
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