$ git clone -n https://src.fedoraproject.org/rpms/babel.git /var/lib/mock/f45-build-39422-735/root/chroot_tmpdir/scmroot/babel
Cloning into '/var/lib/mock/f45-build-39422-735/root/chroot_tmpdir/scmroot/babel'...
$ git fetch origin 30ed06b2a4de28d4d46f6d12fdffc196798d9ecd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/babel
 * [new ref]         30ed06b2a4de28d4d46f6d12fdffc196798d9ecd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 30ed06b Update to 2.18.0