From 52cd019a544b49469ce588c42a59100e6384d362 Mon Sep 17 00:00:00 2001
From: Erik Johnston <erik@matrix.org>
Date: Wed, 8 Feb 2017 16:04:29 +0000
Subject: [PATCH] Make None check explicit

---
 synapse/storage/end_to_end_keys.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/synapse/storage/end_to_end_keys.py b/synapse/storage/end_to_end_keys.py
index 2040e022fa..b9f1365f92 100644
--- a/synapse/storage/end_to_end_keys.py
+++ b/synapse/storage/end_to_end_keys.py
@@ -93,7 +93,7 @@ class EndToEndKeyStore(SQLBaseStore):
             query_clause = "user_id = ?"
             query_params.append(user_id)
 
-            if device_id:
+            if device_id is not None:
                 query_clause += " AND device_id = ?"
                 query_params.append(device_id)
 
-- 
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