Google site: bug

So there I am panicking because the Random Pub Finder seems to be disappearing from Google and today it got worse. Only 58 pages in the Google index apparently. Then I looked at the search string, site:http://www.randompubfinder.com/ So I tried site:http://www.randompubfinder.com and there are 639 pages. Panic over. So it looks like Google has a bit of a bug in its search engine and in Google Sitemaps, which provides the first URL as a link to tell you how many of your pages are indexed.