manager-bundle/src/ContaoManager/Plugin.php
public function getExtensionConfig($extensionName, array $extensionConfigs, PluginContainerBuilder $container): array
    {
        switch ($extensionName) {
            case 'contao':
                return $this->handlePrependLocale($extensionConfigs, $container);

            case 'doctrine':
                return $this->addDefaultServerVersion($extensionConfigs, $container);

            default:
                return $extensionConfigs;
        }
    }
public function getExtensionConfig($extensionName, array $extensionConfigs, PluginContainerBuilder $container): array
    {
        switch ($extensionName) {
            case 'contao':
                return $this->handlePrependLocale($extensionConfigs, $container);

            case 'doctrine':
                return $this->addDefaultServerVersion($extensionConfigs, $container);

            default:
                return $extensionConfigs;
        }
    }
{@inheritdoc}