When we type "Special:PrefixIndex/Test" in the search box and click the Search button, it is shown the following line:
Did you mean: [-1]:Preference/Test
I don't think "[-1]" should be here, because
Did you mean: Special:Preference/Test
is more understandable for this case.
Helder
Version: unspecified
Severity: minor
URL: http://en.wikipedia.org/w/index.php?title=Special%3ASearch&search=Special%3APrefixIndex%2FTest&fulltext=Search