PCRE2 10.47 breaks main.func_regexp_pcre test

main.func_regexp_pcre                    w4 [ fail ]

        Test ended at 2025-11-07 12:16:25

CURRENT_TEST: main.func_regexp_pcre

--- /var/tmp/portage/dev-db/mariadb-10.6.24/work/mysql/mysql-test/main/func_regexp_pcre.result  2025-10-25 17:19:57.000000000 -0000

+++ /var/tmp/portage/dev-db/mariadb-10.6.24/work/mysql/mysql-test/main/func_regexp_pcre.reject  2025-11-07 12:16:24.880118174 -0000

@@ -791,7 +791,7 @@

 1

 SET default_regex_flags=DEFAULT;

 SELECT 'Aq' RLIKE 'A\\q';

-ERROR 42000: Regex error 'unrecognized character follows \ at offset 2'

+ERROR 42000: Regex error 'unrecognized character follows \ at offset 3'

 SET default_regex_flags='EXTRA';

 SELECT 'A' RLIKE 'B';

 'A' RLIKE 'B'

Result content mismatch

 - saving '/var/tmp/portage/dev-db/mariadb-10.6.24/temp/var-tests/4/log/main.func_regexp_pcre/' to '/var/tmp/portage/dev-db/mariadb-10.6.24/temp/var-tests/log/main.func_regexp_pcre/'