@Override
	public GTreeNode clone() throws CloneNotSupportedException {
		CoreGTreeNode clone = (GTreeNode) super.clone();
		clone.parent = null;
		clone.children = null;
		return (GTreeNode) clone;
	}
Creates a clone of this node.  The clone should contain a shallow copy of all the node's
attributes except that the parent and children are null.
@return the clone of this object.
@throws CloneNotSupportedException if some implementation prevents itself from being cloned.
Ghidra/Framework/Docking/src/main/java/docking/widgets/tree/CoreGTreeNode.java