User blog comment:DaNASCAT/Technical Update: April 16, 2013/@comment-5028213-20130416194927/@comment-3335785-20130418103251

Searching for "Special:SpecialPages", or any other special page, currently returns a Special:Search page without the special page as a result, instead of going to the expected Special:SpecialPages. I think this is a known bug? It was mentioned on a tech update maybe last week or the week before.