don't try to modify a non-existant result

2018-12-07 22:42:28 -05:00
parent 3e180d8f14
commit c915567517
1 changed files with 2 additions and 1 deletions
--- a/synapse/storage/end_to_end_keys.py
+++ b/synapse/storage/end_to_end_keys.py
@@ -153,7 +153,8 @@ class EndToEndKeyStore(SQLBaseStore):
            user_id = attestation["user_id"]
            device_id = attestation["device_id"]
            # FIXME: combine signatures of the same payload?
-            if user_id in result and device_id in result[user_id]:
+            if user_id in result and device_id in result[user_id] \
+               and result[user_id][device_id]:
                result[user_id][device_id].setdefault("attestations", []) \
                    .append(attestation)