With the recent addition of `emacs-wiki-link-escape’ and
`emacs-wiki-link-unescape’, links are now unescaped before displaying.
This makes them uneditable. People probably shouldn’t be editing the
links manually as this can screw up planner links (among others), but
I should provide an easy way to edit the link at point. I have a
function in my emacs-wiki-config.el to do that. I’ll probably bind to
C-c C-e, which makes sense.