link text and href on fully qualified URL should match

i noticed that when changing the linktext of a fully qualified URL the links href target doesn't change. i think this is confusing. ideally when changing a URL we should automatically update also the link target.

No file, test, or entry point is identified in the issue. First locate the link-editing path for fully qualified URLs and reproduce changing the link text; done means changing the URL also updates the link target consistently, with coverage for this behavior.

Written by the indexing model from the issue text.