GeometryCollection clustered by ClusteredGroupIndex does not respect child's gravity setup

	void FClusterUnionManager::HandleAddOperation(FClusterUnionIndex ClusterIndex, const TArray<FPBDRigidParticleHandle*>& Particles, bool bReleaseClustersFirst)
	{
...
		if (bIsNewCluster)
		{
			if (bIsSleeping)
			{
				MEvolution.SetParticleObjectState(Cluster->InternalCluster, Chaos::EObjectStateType::Sleeping);
			}

			MEvolution.SetPhysicsMaterial(Cluster->InternalCluster, MEvolution.GetPhysicsMaterial(FinalParticlesToAdd[0]));
			Cluster->InternalCluster->SetControlFlags(FinalParticlesToAdd[0]->ControlFlags() );  // add this line to copy gravity setting
			Cluster->InternalCluster->SetLinearEtherDrag(FinalParticlesToAdd[0]->LinearEtherDrag() ); 
			Cluster->InternalCluster->SetAngularEtherDrag(FinalParticlesToAdd[0]->AngularEtherDrag() ); 
		}