change draining state

backend/app.py

@@ -780,7 +780,7 @@ def newserv_account_lock_heartbeat():
                 SET updated_at = now(),
                     expires_at = %s
                 WHERE holder_source = %s
-                  AND state IN ('active', 'draining')
+                  AND state = 'active'
             """, (expires_at, source))
             refreshed = cur.rowcount