From c68211250e4b09da80fb4ac4dce0fdfe2756d9e7 Mon Sep 17 00:00:00 2001
From: Alejandro Alonso <alejandroalonsofernandez@gmail.com>
Date: Fri, 22 Jul 2016 09:24:45 +0200
Subject: [PATCH] Fixing webhook milestone serializer

---
 taiga/webhooks/serializers.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/taiga/webhooks/serializers.py b/taiga/webhooks/serializers.py
index 61eea6cb..cb85720e 100644
--- a/taiga/webhooks/serializers.py
+++ b/taiga/webhooks/serializers.py
@@ -307,6 +307,12 @@ class MilestoneSerializer(serializers.LightSerializer):
     def get_permalink(self, obj):
         return resolve_front_url("taskboard", obj.project.slug, obj.slug)
 
+    def to_value(self, instance):
+        if instance is None:
+            return None
+
+        return super().to_value(instance)
+
 
 ########################################################################
 # User Story