This method acts as if the document was going through a save and load cycle,
putting the document in a "normal" form. As a consequence, this method
updates the replacement tree of EntityReference nodes and normalizes Text
nodes, as defined in the method Node.normalize().
This method acts as if the document was going through a save and load cycle, putting the document in a "normal" form. As a consequence, this method updates the replacement tree of EntityReference nodes and normalizes Text nodes, as defined in the method Node.normalize().