/// <summary>
        /// Changes the replication state of a block.
        /// </summary>
        /// <param name="operation">Details of the operation performed.</param>
        public virtual void ChangeReplication(WriteableChangeBlockOperation operation)
        {
            ReplicationStatus Replication = operation.Replication;
            int BlockIndex = operation.BlockIndex;

            Debug.Assert(BlockIndex >= 0 && BlockIndex < BlockStateList.Count);

            IWriteableBlockState BlockState = (IWriteableBlockState)BlockStateList[BlockIndex];

            NodeTreeHelperBlockList.SetReplication(BlockState.ChildBlock, Replication);

            operation.Update(BlockState);
        }