Implement changes to MSC2285 (hidden read receipts) (#12168)

* Changes hidden read receipts to be a separate receipt type
  (instead of a field on `m.read`).
* Updates the `/receipts` endpoint to accept `m.fully_read`.

1 files changed, 1 insertions, 1 deletions

diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py

index 5125126a80..2c555a66d0 100644
--- a/synapse/handlers/sync.py
+++ b/synapse/handlers/sync.py
@@ -1045,7 +1045,7 @@ class SyncHandler:
             last_unread_event_id = await self.store.get_last_receipt_event_id_for_user(
                 user_id=sync_config.user.to_string(),
                 room_id=room_id,
-                receipt_type=ReceiptTypes.READ,
+                receipt_types=(ReceiptTypes.READ, ReceiptTypes.READ_PRIVATE),
             )
 
             return await self.store.get_unread_event_push_actions_by_room_for_user(