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-rw-r--r--synapse/storage/events.py8
1 files changed, 4 insertions, 4 deletions
diff --git a/synapse/storage/events.py b/synapse/storage/events.py
index 803a4e2477..24d9978304 100644
--- a/synapse/storage/events.py
+++ b/synapse/storage/events.py
@@ -2099,9 +2099,6 @@ class EventsStore(SQLBaseStore):
             "[purge] found %i events before cutoff, of which %i are remote"
             " non-state events to delete", len(event_rows), len(to_delete))
 
-        for event_id, state_key in event_rows:
-            txn.call_after(self._get_state_group_for_event.invalidate, (event_id,))
-
         logger.info("[purge] Finding new backward extremities")
 
         # We calculate the new entries for the backward extremeties by finding
@@ -2229,12 +2226,15 @@ class EventsStore(SQLBaseStore):
             state_rows
         )
 
-        # Delete all non-state
         logger.info("[purge] removing events from event_to_state_groups")
         txn.executemany(
             "DELETE FROM event_to_state_groups WHERE event_id = ?",
             [(event_id,) for event_id, _ in event_rows]
         )
+        for event_id, _ in event_rows:
+            txn.call_after(self._get_state_group_for_event.invalidate, (
+                event_id,
+            ))
 
         logger.info("[purge] updating room_depth")
         txn.execute(