angstrom-v2012.12 build issue

Hello,

I'm try build angstrom-v2012.12 . My setup is
git clone git://github.com/Angstrom-distribution/setup-scripts.git
cd setup-scripts
git checkout -b remotes/origin/angstrom-v2012.12-yocto1.3
MACHINE=beaglebone ./oebb.sh config beaglebone

After  I checked source is not angstrom-v2012.12. it is download to angstrom-v2013.12.

How to download angstrom-v2012.12

Thanks
