Matt Curtis wrote:
In w:Help:Link it states clearly that "in
internal and interwiki
link style, a plus sign in a page name is not allowed, the HTML
and hence the rendered page just shows the wikitext, e.g. a+b".
In MediaWiki 1.6, you can optionally add to the set of allowed title characters.
This breaks backwards compatibility with some very old Wikipedia URLs from 2002,
so is somewhat controversial. (eg if you follow one of those a very old links
that has been recorded, linked, or referenced somewhere it no longer brings you
to the right page.)
-- brion vibber (brion @
pobox.com)