From 44298ca6d8299479d64cc5ac1211837998fdce57 Mon Sep 17 00:00:00 2001
From: Ilya Zverev <zverik@textual.ru>
Date: Wed, 9 Mar 2016 00:58:34 +0300
Subject: [PATCH] Zero changes?!

---
 www/mmwatch.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/www/mmwatch.py b/www/mmwatch.py
index 8b683ac..0764f53 100755
--- a/www/mmwatch.py
+++ b/www/mmwatch.py
@@ -24,10 +24,14 @@ class Change(peewee.Model):
   changes = peewee.TextField()
 
   def changed_coord(self):
-    return json.loads(self.changes)[0]
+    changes = json.loads(self.changes)
+    return None if changes is None else changes[0]
 
   def changed_tags(self):
-    tags = json.loads(self.changes)[1]
+    changes = json.loads(self.changes)
+    if changes is None:
+      return {}
+    tags = json.loads(self.changes)
     for t in tags:
       if tags[t][0] is None:
         tags[t].append('create')