From ae8ff92e05eb511b21206ec303056c36e00df61c Mon Sep 17 00:00:00 2001
From: Kegan Dougal <kegan@matrix.org>
Date: Tue, 7 Apr 2015 15:48:20 +0100
Subject: [PATCH] Fix a bug which causes a send event level of 0 to not be
 honoured.

Caused by a bad if check, which incorrectly executes for both 0 and None,
when None was the original intent.
---
 synapse/api/auth.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/synapse/api/auth.py b/synapse/api/auth.py
index 64f605b96..18f3d117b 100644
--- a/synapse/api/auth.py
+++ b/synapse/api/auth.py
@@ -486,7 +486,7 @@ class Auth(object):
             send_level = send_level_event.content.get("events", {}).get(
                 event.type
             )
-            if not send_level:
+            if send_level is None:
                 if hasattr(event, "state_key"):
                     send_level = send_level_event.content.get(
                         "state_default", 50