diff --git a/synapse/storage/databases/main/deviceinbox.py b/synapse/storage/databases/main/deviceinbox.py
index 1eb4501c99..b13d5bd48e 100644
--- a/synapse/storage/databases/main/deviceinbox.py
+++ b/synapse/storage/databases/main/deviceinbox.py
@@ -816,7 +816,7 @@ class DeviceInboxWorkerStore(SQLBaseStore):
local_by_user_then_device = {}
for user_id, messages_by_device in messages_by_user_then_device.items():
- inboxes_size = {}
+ inbox_sizes = {}
if size_limit:
sql = """
SELECT device_id, COUNT(*) FROM device_inbox
@@ -825,7 +825,7 @@ class DeviceInboxWorkerStore(SQLBaseStore):
"""
txn.execute(sql, (user_id,))
for r in txn:
- inboxes_size[r[0]] = r[1]
+ inbox_sizes[r[0]] = r[1]
messages_json_for_user = {}
devices = list(messages_by_device.keys())
@@ -842,10 +842,7 @@ class DeviceInboxWorkerStore(SQLBaseStore):
message_json = json_encoder.encode(messages_by_device["*"])
for device_id in devices:
- if (
- size_limit is None
- or inboxes_size.get(device_id, 0) <= size_limit
- ):
+ if size_limit is None or inbox_sizes.get(device_id, 0) < size_limit:
# Add the message for all devices for this user on this
# server.
messages_json_for_user[device_id] = message_json
@@ -881,10 +878,7 @@ class DeviceInboxWorkerStore(SQLBaseStore):
)
message_json = json_encoder.encode(msg)
- if (
- size_limit is None
- or inboxes_size.get(device_id, 0) <= size_limit
- ):
+ if size_limit is None or inbox_sizes.get(device_id, 0) < size_limit:
messages_json_for_user[device_id] = message_json
if messages_json_for_user:
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