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-rw-r--r--synapse/handlers/typing.py5
1 files changed, 3 insertions, 2 deletions
diff --git a/synapse/handlers/typing.py b/synapse/handlers/typing.py
index 3b89126528..6854428b7c 100644
--- a/synapse/handlers/typing.py
+++ b/synapse/handlers/typing.py
@@ -160,8 +160,9 @@ class FollowerTypingHandler:
         """Should be called whenever we receive updates for typing stream."""
 
         if self._latest_room_serial > token:
-            # The master has gone backwards. To prevent inconsistent data, just
-            # clear everything.
+            # The typing worker has gone backwards (e.g. it may have restarted).
+            # To prevent inconsistent data, just clear everything.
+            logger.info("Typing handler stream went backwards; resetting")
             self._reset()
 
         # Set the latest serial token to whatever the server gave us.