1 files changed, 3 insertions, 0 deletions
diff --git a/synapse/replication/http/federation.py b/synapse/replication/http/federation.py
index eed29cd597..d3abafed28 100644
--- a/synapse/replication/http/federation.py
+++ b/synapse/replication/http/federation.py
@@ -60,6 +60,9 @@ class ReplicationFederationSendEventsRestServlet(ReplicationEndpoint):
         {
             "max_stream_id": 32443,
         }
+
+    Responds with a 409 when a `PartialStateConflictError` is raised due to an event
+    context that needs to be recomputed due to the un-partial stating of a room.
     """
 
     NAME = "fed_send_events"