Attempt to fork a repository leads to an empty repository being created

I attempted to fork
https://bitbucket.org/rautek/cs380-2013

I reached the page with the 'cloning repository' progress bar, and the progress continued for several minutes (much longer than it usually does). Eventually it directed to the new repository start page (where it asks one whether one has existing code to import or is starting from scratch), and the repository is empty (contains none of the commits or source from the original). The repository (https://bitbucket.org/nali/cs380-2013) is still listed as a fork of the original however.