[Flow] post-package-install not run - aproblem?

[Martin Kutschker]

Ho!

I try to create a new project with this command:

composer create-project --no-dev typo3/flow-base-distribution X

Then I get this:

Installing typo3/flow-base-distribution (2.2.2)
   - Installing typo3/flow-base-distribution (2.2.2)
     Cloning 634499523c6ea4d9bfdc746a9be4a359014f74c3

Created project in X
Loading composer repositories with package information
Installing dependencies
   - Installing composer/installers (v1.0.18)
     Loading from cache

Class TYPO3\Flow\Composer\InstallerScripts is not autoloadable, can not 
call post-package-install script
   - Installing doctrine/lexer (v1.0)
     Loading from cache

[etc]

For any of the cached packages composer complains about not being able 
to run the post install script.

Looks a bit worrying. IS this normal or is it a bug?

Masi

PS: Is there any way to avoid cloning the Flow packages?