isAbsolutePath: Argument #1 ($path) must be of type string, null given

[driskell]

  [TypeError]
  Composer\Util\Filesystem::isAbsolutePath(): Argument #1 ($path) must be of type string, null given, called in .../test2/vendor/drupal-composer/preserve-paths/src/PluginWrapper.php on line 190

Since composer 2.5.6 or 2.5.7 (works fine on 2.5.5 but haven't checked 2.5.6 - happens always on 2.5.7) - this error occurs due to metapackage encountered.

It is similar to the issue in #42 - and the reproduction case in #42 will fully replicate this instance.

So as of 2.5.7 at least of composer v2 this plugin no longer works at all.

[driskell]

duplicates #43