[SOLVED] Vector3.Unproject problem with version 2.6

Since Version 2.6 Vector3.Unproject() is not working as expected anymore.
I would expect that if i project a vector and after that i unproject it, i get the original vector. This works with 2.5 but not with 2.6.
The problem seems to be the change of this commit: https://github.com/BabylonJS/Babylon.js/commit/aea052a54acb9b97530c87297c40f2823ebbc4f8
If i revert this change its working as expected again. Here is a playground:
http://www.babylonjs-playground.com/#21NAUI#0