diff -U3 /tmp/cirrus-ci-build/contrib/isn/expected/isn.out /tmp/cirrus-ci-build/build/testrun/isn/regress/results/isn.out
--- /tmp/cirrus-ci-build/contrib/isn/expected/isn.out	2024-03-19 13:35:13.140089000 +0000
+++ /tmp/cirrus-ci-build/build/testrun/isn/regress/results/isn.out	2024-03-19 13:53:03.939870000 +0000
@@ -10,6 +10,7 @@
       WHERE opc.oid >= 16384
       ORDER BY 1, 2 OFFSET 0) ss
 WHERE NOT amvalidate(oid);
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
 INFO:  operator family "isn_ops" of access method btree is missing cross-type operator(s)
 INFO:  operator family "isn_ops" of access method btree is missing cross-type operator(s)
 INFO:  operator family "isn_ops" of access method btree is missing cross-type operator(s)
@@ -272,6 +273,7 @@
              ('9771234567003','ISSN'))
       AS a(str,typ),
      LATERAL pg_input_error_info(a.str, a.typ) as errinfo;
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
       isn      | type  | ok | sql_error_code |                        message                         | detail | hint 
 ---------------+-------+----+----------------+--------------------------------------------------------+--------+------
  9780123456786 | UPC   | f  | 22P02          | cannot cast ISBN to UPC for number: "9780123456786"    |        |