[10.x] fix: Restore the original error/exception handler on terminating app #49791
+8
−2
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Resolves #49237, #49593
HandleExceptions bootstrapper sets an error handler for the application, but does not restore the original handler after the run. This causes failure on isolated tests in PHPUnit on PHP 8.3. In addition, PHPUnit is going to detect the error handler which is not restored and mark as risky test since PHPUnit v11 (See sebastianbergmann/phpunit#5619).
Related pull request: sebastianbergmann/phpunit#5677