I'm getting a new error today that was not happening with the identical config yesterday.

With MW 1.31.1 and 1.31.2 I'm getting errors after installing dependencies and extensions with Composer. I have the following composer.local.json:

``` { "require": { "mediawiki/semantic-media-wiki": "3.0.0", "mediawiki/semantic-result-formats": "3.0.0", "mediawiki/semantic-compound-queries": "1.2.0", "mediawiki/sub-page-list": "1.5.0", "mediawiki/maps": "6.0.3", "pear/net_smtp": "1.8.0" <-- remove this when using MW 1.31.2 }, "extra": { "merge-plugin": { "include": [ "extensions/SyntaxHighlight_GeSHi/composer.json", "extensions/Elastica/composer.json" ] } } } ```

SyntaxHighlight_GeSHi and Elastica are both tracking their REL1_31 branches, which haven't changed in about a year. Despite that, yesterday running `composer update` caused no issues. Today I started getting the following error:

``` [Wed Jun 26 16:16:18.364715 2019] [php7:warn] [pid 12304] [client my.ip.add.ress:46156] PHP Warning: require(/opt/htdocs/mediawiki/vendor/composer/../jetbrains/phpstorm-stubs/PhpStormStubsMap.php): failed to open stream: No such file or directory in /opt/htdocs/mediawiki/vendor/composer/autoload_real.php on line 70, referer: https://example.com/ [Wed Jun 26 16:16:18.364896 2019] [php7:error] [pid 12304] [client my.ip.add.ress:46156] PHP Fatal error: require(): Failed opening required '/opt/htdocs/mediawiki/vendor/composer/../jetbrains/phpstorm-stubs/PhpStormStubsMap.php' (include_path='/opt/htdocs/mediawiki/vendor/pear/console_getopt:/opt/htdocs/mediawiki/vendor/pear/mail:/opt/htdocs/mediawiki/vendor/pear/mail_mime:/opt/htdocs/mediawiki/vendor/pear/mail_mime-decode:/opt/htdocs/mediawiki/vendor/pear/net_smtp:/opt/htdocs/mediawiki/vendor/pear/net_socket:/opt/htdocs/mediawiki/vendor/pear/pear-core-minimal/src:/opt/htdocs/mediawiki/vendor/pear/pear_exception:.:/usr/share/pear:/usr/share/php') in /opt/htdocs/mediawiki/vendor/composer/autoload_real.php on line 70, referer: https://example.com/ ```

Using MW 1.32.1 and 1.31.2 I did the following:

``` rm -f ./composer.lock && composer install && sudo systemctl reload httpd # no mention of phpstorm-stubs in output # page loads fail

rm -f ./composer.lock && composer install --no-dev && sudo systemctl reload httpd # output includes: Removing jetbrains/phpstorm-stubs (dev-master) # page loads succeed (no phpstorm-stubs)

composer install && sudo systemctl reload httpd # output includes: Installing jetbrains/phpstorm-stubs (dev-master 9d01ce3): Cloning 9d01ce3476 # page loads succeed (phpstorm-stubs @ 9d01ce3)

composer update && sudo systemctl reload httpd # output includes: Updating jetbrains/phpstorm-stubs dev-master (9d01ce3 => 1b99060): Checking out 1b9906084d # page loads fail (phpstorm-stubs @ 1b99060) ```

I need the httpd reload to invalidate opcache in my config. Based upon the above it seems that the phpstorm-stubs that is getting required from non-dev dependencies doesn't have issues, but the one from dev dependencies does. Or perhaps something to do with Composer or with the Composer merge plugin is causing one version of phpstorm-stubs to be checked out but the autoloader to be setup for the other version. Any thoughts?

Thanks, James