MW 1.31 has hidden dependency which disallows --no-dev option for composer

[WolfgangFahl]

Fatal error: require(): Failed opening required '/var/www/html/vendor/composer/../jetbrains/phpstorm-stubs/PhpStormStubsMap.php' (include_path='/var/www/html/vendor/pear/console_getopt:/var/www/html/vendor/pear/mail:/var/www/html/vendor/pear/mail_mime:/var/www/html/vendor/pear/mail_mime-decode:/var/www/html/vendor/pear/pear-core-minimal/src:/var/www/html/vendor/pear/pear_exception:.:/usr/local/lib/php') in /var/www/html/vendor/composer/autoload_real.php on line 70