Description
Building multiple buildvariants in one go is broken:
D:\dev\qbs\tests\manual\application>qbs debug release
ERROR: Error: error while evaluating:
D:\dev\qbs-build-desktop-Qt_4_8_3__package__Debug\share\qbs\modules\qt\core\qtcore.qbs:8 ReferenceError: Can't find variable: qbs
Building debug and release one after another works fine.