The documents modifications related to a document rename are outside of the DocumentRenaming/edEvent folding

In XWIKI-6732 all the refactoring of links done after a document rename was moved to a listener reacting to DocumentRenamedEvent, but this has a not very nice side effect: all those documents changes are considered as independent notifications instead of being folded between DocumentRenamingEvent and DocumentRenamedEvent which is the only thing that should be registered as notification ideally.