Consider what happens when you click
http://en.wikipedia.org/wiki/Wikipedia:Wikipedia_Signpost/
It's just a trailing slash different from
http://en.wikipedia.org/wiki/Wikipedia:Wikipedia_Signpost/
But the best you can do is try to get there from deep from within the offered
http://en.wikipedia.org/wiki/Special:Search/Wikipedia_Signpost/
Therefore perhaps say in a link "did you mean [this without the trailing slash]?"
Version: 1.11.x
Severity: trivial