MediaWiki needs a behavior switch (such as __NOPARENTLINK__) to disable the automatic link from a subpage to its parent page.
Use cases include WikiProjects that use tab templates, where the first tab is the parent page and the others are subpages. The parent page links on all but the first tab cause the whole navigation framework to shift as users navigate from the main page to the subpages and back.
See: http://en.wikipedia.org/wiki/Wikipedia:WikiProject_Military_history
Other use cases include pages intended for newcomers where it is desirable to limit unnecessary links as much as possible.
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**Version**: 1.21.x
**Severity**: enhancement
>>! From T120758
> Wikibooks uses Subpages in order to structure a book in chapters. Wikiversity does the same for a course and lessons. Each subpage shows links to ancestor pages automatically. Nevertheless the authors offer to navigate between chapters and the content page using navigational templates. In these cases, you see the link to the ancestor page as well as the navigation bar -- e.g. b:en:Geometry for Elementary School/Introduction. I'ld prefer to suppress the automatically created link if a navigation bar is shown. Double information may disturb users.
>
> Users: Wikibooks, Wikiversity and other projects that use subpages. Current situation: Links to ancestor pages can't be suppressed. Solution: Add a behavior switch __NOANCESTORLINK__ or something like that. --
>
> Juetho (talk) 10:45, 18 November 2015 (UTC)
>
> This card tracks a proposal from the 2015 Community Wishlist Survey: https://meta.wikimedia.org/wiki/2015_Community_Wishlist_Survey
>
> This proposal received 7 support votes, and was ranked #78 out of 107 proposals. https://meta.wikimedia.org/wiki/2015_Community_Wishlist_Survey/Reading#Subpages:_suppress_links_to_ancestor_pages