[php-src] Issue #24549: I may have found a problem in PHP

Issue: https://github.com/php/php-src/issues/24549 Author: nilogic ### Description I got this when I ran make TEST_PHP_ARGS=-j4 test trying to install php-8.5.12 -Just doing as I am told. :-) [php_test_results_20261022_1521.txt](https://github.com/user-attachments/files/33829692/php_test_results_20261022_1521.txt) ===================================================================== WARNED TEST SUMMARY --------------------------------------------------------------------- Test multiple watch elements pointing to the same watchpoint [sapi/phpdbg/tests/watch_006.phpt] (warn: XFAIL section but test passes) ===================================================================== You may have found a problem in PHP. This report can be saved and used to open an issue on the bug tracker at https://github.com/php/php-src/issues This gives us a better understanding of PHP's behavior. ### PHP Version ```plain trying to install php-8.5.12 had this before: PHP 8.1.2-1ubuntu2.28 (cli) (built: Oct 19 2026 18:54:45) (NTS) Copyright (c) The PHP Group Zend Engine v4.1.2, Copyright (c) Zend Technologies with Zend OPcache v8.1.2-1ubuntu2.28, Copyright (c), by Zend Technologies ``` ### Operating System Operating System: Linux Mint 21.3 Kernel: Linux 6.8.0-138-generic