TYPO3 Core

After updates in symfony/finder component https://github.com/symfony/finder/commit/c72995d9f5999b3fcdd8660c0c9690243252e1e1 running now "php vendor/bin/typo3cms install:generatepackagestates" is having trouble installing packages because of the real path.

The wrong path now is showin only for sysext and not for custom extension (e.g. ext:news).

1. Have one custom extension which also depends in "core" extension.
2. Delete all extension in PackageStates.php
3. Try to run in cli "php vendor/bin/typo3cms install:generatepackagestates"

Result:
[ UnexpectedValueException ]
The package "some extension" depends on "core" which is not present in the system.
Note: The reason for this error is the wrong path now because of symfony finder component

Expected result:

The following extensions have been added to the generated PackageStates.php file: core, extbase, fluid, ....

Suggestion:

A solution can be modifying PackageManager.php->registerPackagesFromConfiguration(...)

$sysExtension = strpos($stateConfiguration['packagePath'], 'sysext');
 if ($sysExtension !== false) {
      $packagePath = PathUtility::sanitizeTrailingSeparator($stateConfiguration['packagePath']);
  } else {
       $packagePath = PathUtility::sanitizeTrailingSeparator($this->packagesBasePath . $stateConfiguration['packagePath']);
 }