7bc350818c
AuditMaintenanceGrants (migration 64) landed after the flip and adds GRANT UPDATE (SourceNode) to the purger, but the tests still migrated "back up" only to the flip and asserted the pre-64 grant list, so the class failed in either test order (the grant missing after DownUp, or unexpected before). Restore to head and compare the down state against the pre-64 grant set. Co-Authored-By: Claude <noreply@anthropic.com>