From 9376c7286f3f21006ba27a40620ac3ddb73b1086 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20P=C3=A9ters?= <fpeters@0d.be>
Date: Mon, 27 Apr 2020 13:14:53 +0200
Subject: [PATCH] limit schedule sort on date object

---
 emissions/models.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/emissions/models.py b/emissions/models.py
index 8dade8c..cf4f5c4 100644
--- a/emissions/models.py
+++ b/emissions/models.py
@@ -195,7 +195,7 @@ class Emission(models.Model):
         possible_dates = []
         for schedule in schedules:
             possible_dates.append((schedule.get_next_planned_date(since), schedule))
-        possible_dates.sort()
+        possible_dates.sort(key=lambda x: x[0])
         return possible_dates[0]
 
     def get_next_planned_date(self, since=None):
-- 
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