!3 When a page is renamed, any alias links that are using subpages are changed.

First build parent & child pages where one refers to the other.

|Page creator.|
|Page name.|Page contents.|valid?|
|!-ParentPage-!|!-refer to [[link][^ChildPage]]-!|true|
|!-ParentPage.ChildPage-!|whatever |true|

Then rename the target page.

|Response Requester.|
|uri   |status?|
|!-ParentPage.ChildPage?responder=renamePage&newName=NewChild&refactorReferences=on-!||

Next fetch the Source page.

|Response Requester.|
|uri|valid?|contents?|
|!-ParentPage-!|true||

Make sure that the new target name is present and that the old name is not.

|Response Examiner.|
|type  |pattern|matches?|
|contents|!-href="ParentPage\.NewChild"-!|true|
|contents|!-ChildPage-!|false|