From 8e55810a0128080d91b77be19e6a8d244b9f8bef Mon Sep 17 00:00:00 2001
From: Pierre-Yves Chibon <pingou@pingoured.fr>
Date: May 18 2017 09:07:41 +0000
Subject: Make the backref from project to mirror_hook to point to only 1 project


---

diff --git a/pagure/hooks/mirror_hook.py b/pagure/hooks/mirror_hook.py
index a7abcd9..6c4b795 100644
--- a/pagure/hooks/mirror_hook.py
+++ b/pagure/hooks/mirror_hook.py
@@ -231,7 +231,7 @@ class MirrorTable(BASE):
         'Project', remote_side=[Project.id],
         backref=backref(
             'mirror_hook', cascade="delete, delete-orphan",
-            single_parent=True)
+            single_parent=True, uselist=False)
     )