Similarly, the search form on my blog, which will issue a redirect to the actual article if there is only one result, sometimes works, and sometimes doesn't. (If you're inclined to try testing it, it's at http://www.hyperborea.org/journal/ -- some one-result search terms include meme, delvian, pirates, sharpreader, dairy, pastede -- and that last one isn't a typo.)
Quite weird, I get a complete different number of results: (and it always worked but never redirected)
Query | Results ---------------------- meme : 1 delvian : 0 pirates : 3 sharpreader: 1 dairy : 0 pastede : 0
Sorry, I was searching from http://www.hyperborea.org/ and not from http://www.hyperborea.org/journal/. Now I can reproduce it. [I'm analyzing this now ...] -- Cheers Jorge.-