$ git clone -n https://src.fedoraproject.org/rpms/jd.git /var/lib/mock/f41-build-1036885-18762/root/chroot_tmpdir/scmroot/jd
Cloning into '/var/lib/mock/f41-build-1036885-18762/root/chroot_tmpdir/scmroot/jd'...
$ git fetch origin 622ea0765d2e3d4f5d6c73f69be4e1885f1c0518:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jd
 * [new ref]         622ea0765d2e3d4f5d6c73f69be4e1885f1c0518 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 622ea07 0.12.0-beta