How can the editing protection be released from template wiki page? (It is incorrectly imposed by a superseded 5.1 page?)
You do not have permission to edit this page, for the following reason:
This page has been protected from editing because it is transcluded in the following page, which is protected with the “cascading” option turned on:
Reference:
wanted to add the {{Stable_branch}} template as the 1st “See also” entry for {{man version}} (since it is the eqivalant without the full stop/period)
https://gramps-project.org/wiki/index.php/Template:Man_version