has no title, then A will display the link as "B". Now page B is modified
and a title is added. Nothing updates "A".
The added overhead of rebuilding every page that links to B when B is
- changed (as the `postscan` hook of the po plugin does) is IMHO a killer.
+ changed (as the `indexhtml` hook of the po plugin does) is IMHO a killer.
That could be hundreds or thousands of pages, making interactive editing
way slow. This is probably the main reason I had not attempted this whole
thing myself. IMHO this calls for some kind of intellegent dependency