CPU CascadeClassifier with HOG not working anymore with opencv 3.0.0.rc1 (Bug #4336)

Hi,
While moving from opencv 2.4.10 to opencv 3.0.0rc1 I found that the CPU CascadeClassifier is not working anymore with HOG.
Digging into the code I discovered that the HOGEvaluator is completely missing in 3.0.

This is the FeatureEvaluator::create() method from the 2.4 version:

Ptr<FeatureEvaluator> FeatureEvaluator::create( int featureType )
{
    return featureType == HAAR ? Ptr<FeatureEvaluator>(new HaarEvaluator) :
        featureType == LBP ? Ptr<FeatureEvaluator>(new LBPEvaluator) :
        featureType == HOG ? Ptr<FeatureEvaluator>(new HOGEvaluator) :
        Ptr<FeatureEvaluator>();
}

And this is the same method from the 3.0 version:

Ptr<FeatureEvaluator> FeatureEvaluator::create( int featureType )
{
    return featureType == HAAR ? Ptr<FeatureEvaluator>(new HaarEvaluator) :
        featureType == LBP ? Ptr<FeatureEvaluator>(new LBPEvaluator) :
        Ptr<FeatureEvaluator>();
}

They are both extracted from the "cascadedetect.cpp" source file of the relative version.

The "opencv_traincascade" utility included in the 3.0.0rc1 version still permits us to use HOG for training but we don't know how to use the training results anymore.
Is it a bug or a decision ?
If the latter: how are supposed to be used files produced by "opencv_traincascade" with HOG ?

Thank you
Valentino