$ git clone -n https://src.fedoraproject.org/rpms/rpy.git /var/lib/mock/f41-build-814548-148969/root/chroot_tmpdir/scmroot/rpy
Cloning into '/var/lib/mock/f41-build-814548-148969/root/chroot_tmpdir/scmroot/rpy'...
$ git fetch origin bb7ec3f01547badbc97645ba12e793a54032bad1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rpy
 * [new ref]         bb7ec3f01547badbc97645ba12e793a54032bad1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bb7ec3f Rebuilt for Python 3.13