I'm just wondering. It seems to me that the changes in composer/installers 1....

I'm just wondering. It seems to me that the changes in composer/installers 1.9 are a problem. The patch here only updated it 1.8, which shouldn't be a problem. From information on packagist, the dependencies for both versions 1.7 and 1.8 are identical.
- https://packagist.org/packages/composer/installers#v1.8.0
- https://packagist.org/packages/composer/installers#v1.7.0