Steps to reproduce:
create a space → activate the first version → enable duplicate page titles feature,
create a page with title "Child" under the home page,
edit the "Child" page → change the link to "ChangedPermalink" → save,
insert link to the parent home page,
publish the version to a new space,
view the parent home page in the new space.
"Child " should be displayed as the title in the link
"ChangedPermalink" is displayed as the title in the link
Use Scroll Page Tree macro. Configure it with @self parameter to render children starting from the page the macro is placed on.
Confluence 5.9.7, 5.9.9, 5.9.11, 5.10.0, 6.8.0, 6.13.0