1 files changed, 6 insertions, 2 deletions
diff --git a/synapse/handlers/pagination.py b/synapse/handlers/pagination.py
index 9d257ecf31..e4fdae9266 100644
--- a/synapse/handlers/pagination.py
+++ b/synapse/handlers/pagination.py
@@ -136,7 +136,11 @@ class PaginationHandler(object):
             logger.info("[purge] complete")
             self._purges_by_id[purge_id].status = PurgeStatus.STATUS_COMPLETE
         except Exception:
-            logger.error("[purge] failed: %s", Failure().getTraceback().rstrip())
+            f = Failure()
+            logger.error(
+                "[purge] failed",
+                exc_info=(f.type, f.value, f.getTracebackObject()),
+            )
             self._purges_by_id[purge_id].status = PurgeStatus.STATUS_FAILED
         finally:
             self._purges_in_progress_by_room.discard(room_id)
@@ -254,7 +258,7 @@ class PaginationHandler(object):
             })
 
         state = None
-        if event_filter and event_filter.lazy_load_members():
+        if event_filter and event_filter.lazy_load_members() and len(events) > 0:
             # TODO: remove redundant members
 
             # FIXME: we also care about invite targets etc.