Repository: symfony/symfony
File: src/Symfony/Component/Console/Application.php (PHP)

Code before:
            // otherwise, unregister $renderException
            if (!$phpHandler) {
                if (set_exception_handler($renderException) === $renderException) {
                    restore_exception_handler();
                }
                restore_exception_handler();
            } elseif (!$errorHandler) {
                $finalHandler = $phpHandler[0]->setExceptionHandler(null);
                if ($finalHandler !== $renderException) {
                    $phpHandler[0]->setExceptionHandler($finalHandler);
                }
            }

            // SHELL_VERBOSITY is set by Application::configureIO so we need to unset/reset it
            // to its previous value to avoid one command verbosity to spread to other commands
            if (false === $prevShellVerbosity) {
                if (\function_exists('putenv')) {
                    @putenv('SHELL_VERBOSITY');
                }
                unset($_ENV['SHELL_VERBOSITY']);
                unset($_SERVER['SHELL_VERBOSITY']);
            } else {
                if (\function_exists('putenv')) {
                    @putenv('SHELL_VERBOSITY='.$prevShellVerbosity);
                }
                $_ENV['SHELL_VERBOSITY'] = $prevShellVerbosity;
                $_SERVER['SHELL_VERBOSITY'] = $prevShellVerbosity;
            }
        }

        if ($this->autoExit) {
            if ($exitCode > 255) {
                $exitCode = 255;
            }

            exit($exitCode);
        }

        return $exitCode;
    }

    /**
     * Runs the current application.
     *
     * @return int 0 if everything went fine, or an error code
     */
    public function doRun(InputInterface $input, OutputInterface $output): int
    {
        if (true === $input->hasParameterOption(['--version', '-V'], true)) {
            $output->writeln($this->getLongVersion());


Review comment (suggestion):
I try to figure out what could cause an issue. Here, we assume that all 3 have the same value initially, so we reset all 3 to the same value.
That works for me.

Code after:
            if (!$phpHandler) {
                if (set_exception_handler($renderException) === $renderException) {
                    restore_exception_handler();
                }
                restore_exception_handler();
            } elseif (!$errorHandler) {
                $finalHandler = $phpHandler[0]->setExceptionHandler(null);
                if ($finalHandler !== $renderException) {
                    $phpHandler[0]->setExceptionHandler($finalHandler);
                }
            }

            // SHELL_VERBOSITY is set by Application::configureIO so we need to unset/reset it
            // to its previous value to avoid one command verbosity to spread to other commands
            if (false === $prevShellVerbosity) {
                if (\function_exists('putenv')) {
                    @putenv('SHELL_VERBOSITY');
                }
                unset($_ENV['SHELL_VERBOSITY']);
                unset($_SERVER['SHELL_VERBOSITY']);
            } else {
                if (\function_exists('putenv')) {
                    @putenv('SHELL_VERBOSITY='.$prevShellVerbosity);
                }
                $_ENV['SHELL_VERBOSITY'] = $prevShellVerbosity;
                $_SERVER['SHELL_VERBOSITY'] = $prevShellVerbosity;
            }
        }

        if ($this->autoExit) {
            if ($exitCode > 255) {
                $exitCode = 255;
            }

            exit($exitCode);
        }

        return $exitCode;
    }

    /**
     * Runs the current application.
     *
     * @return int 0 if everything went fine, or an error code
     */
    public function doRun(InputInterface $input, OutputInterface $output): int
    {
        if (true === $input->hasParameterOption(['--version', '-V'], true)) {
            $output->writeln($this->getLongVersion());

            return 0;