Update last_device_stream_id_by_dest if there is nothing to send

1 files changed, 1 insertions, 0 deletions

diff --git a/synapse/federation/transaction_queue.py b/synapse/federation/transaction_queue.py

index 633c79c352..5c7245d383 100644
--- a/synapse/federation/transaction_queue.py
+++ b/synapse/federation/transaction_queue.py
@@ -200,6 +200,7 @@ class TransactionQueue(object):
 
             if not pending_pdus and not pending_edus and not pending_failures:
                 logger.debug("TX [%s] Nothing to send", destination)
+                self.last_device_stream_id_by_dest[destination] = device_stream_id
                 return
 
             yield self._send_new_transaction(