btrfs-progs needs to be updated along with the kernelspace code for the tech-preview refresh. There isn't quite a new version upstream, but we can package up what's in git for now.
I have a current snapshot of upstream (with a fix for anaconda) ready to go: http://brewweb.devel.redhat.com/brew/taskinfo?taskID=4965301
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2013-0456.html