URL links incorrectly displayed

[BrianKoontz]

From the wikka-community m/l:

At {{WantedPages}}, I have the following entry:

> forums.xkcd.com/viewtopic.php?f=7&t=86757 (1)

Obviously, I added this URL as a link without the http protocol, so
WikkaWiki thinks it should be an internal link.

When I click at "(1)" to check which page this link is on, it displays:

> No page is linking to forums.xkcd.com/viewtopic.php?f=7.

(notice, the last part of the URL is missing)

The URL of this page is:
> /WantedPages?linking_to=forums.xkcd.com/viewtopic.php?f=7&t=86757

So it seems that the (unencoded) ampersand is the problem here.