Does an efficient cloning of multiple different classes with an override of InternalClone() exist?

Algorithms
2

Hi,

now i made a try to get a clone of the itk::AmoebaOptimizer.

To get a clone with the correct parameters I added in following classes following code.
In itkOptimizer.h, itkSingleValuedNonLinearVnlOptimizer.h, itkAmoebaOptimizer.h I added in the protected space:

/**
* Clone the current optimizer.
* This does a complete copy of the optimizer state to the new optimizer
*/
typename LightObject::Pointer InternalClone() const override;

In the body files is added:

itkOptimizer.cxx

LightObject::Pointer
Optimizer
::InternalClone() const
{
	// Default implementation just copies the parameters from
	// this to new optimizer.
	LightObject::Pointer loPtr = Superclass::InternalClone();
	Self::Pointer rval = dynamic_cast<Self *>(loPtr.GetPointer());
	if (rval.IsNull())
	{
		itkExceptionMacro(<< "downcast to type " << this->GetNameOfClass() << " failed.");
	}

	rval->SetScales(this->GetScales());
	rval->SetInitialPosition(this->GetInitialPosition());
	return loPtr;
}

itkSingleValuedNonLinearVnlOptimizer.cxx

LightObject::Pointer
	SingleValuedNonLinearVnlOptimizer
	::InternalClone() const
	{
		// Default implementation just copies the parameters from
		// this to new optimizer.
		LightObject::Pointer loPtr = Superclass::InternalClone();

		Self::Pointer rval = dynamic_cast<Self *>(loPtr.GetPointer());
		if (rval.IsNull())
		{
			itkExceptionMacro(<< "downcast to type " << this->GetNameOfClass() << " failed.");
		}
		rval->SetMaximize(this->GetMaximize());
		return loPtr;
	}

itkAmoebaOptimizer.cxx

LightObject::Pointer
AmoebaOptimizer
::InternalClone() const
{
	// Default implementation just copies the parameters from
	// this to new optimizer.
	LightObject::Pointer loPtr = Superclass::InternalClone();

	Self::Pointer rval = dynamic_cast<Self *>(loPtr.GetPointer());
	if (rval.IsNull())
	{
		itkExceptionMacro(<< "downcast to type " << this->GetNameOfClass() << " failed.");
	}
	
	rval->SetMaximumNumberOfIterations(this->GetMaximumNumberOfIterations());
	rval->SetOptimizeWithRestarts(this->GetOptimizeWithRestarts());
	rval->SetParametersConvergenceTolerance(this->GetParametersConvergenceTolerance());
	rval->SetFunctionConvergenceTolerance(this->GetFunctionConvergenceTolerance());
	rval->SetInitialSimplexDelta(this->GetInitialSimplexDelta());
	rval->SetAutomaticInitialSimplex(this->GetAutomaticInitialSimplex());

	return loPtr;
}

I tested it in my local copy and it worked as expected. I have a local copy but cannot push it to the repository. Even pushing to a fork doesnt work.

Is this something I can contribute or do you need more information?
Do I have to follow this guide for contribution: itk.org/Wiki/ITK/Git/Develop?