Goodreads Librarians Group discussion

I noticed recently the amount of pages in this book is set to 0. Last time I updated my reading progress (July) it was ok, but right now it tells me I'm finished.
If I count it properly, my book has 612 pages. It's a hardcover version, with the Asimov's face on the cover.

http://www.goodreads.com/book/show/86...

Updated.