steveb - 1:41 am on Jul 19, 2006 (gmt 0)

Yes, Google does not understand Wikipedia's redirects properly, so any page like
Word1_word2
that gets a redirect from
Word1_Word2
will get two listings, sometimes indented because they will both be on the same page, but other times one might be #17 and other might be #52.

It's terrible and dumb, but as long as Google refuses to index destination pages, it will be like that.