$ git clone -n https://src.fedoraproject.org/rpms/codec2.git /var/lib/mock/f45-build-4148-330/root/chroot_tmpdir/scmroot/codec2
Cloning into '/var/lib/mock/f45-build-4148-330/root/chroot_tmpdir/scmroot/codec2'...
$ git fetch origin 5641dd7e109a2bf1d8826205b8d84808878be40b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/codec2
 * [new ref]         5641dd7e109a2bf1d8826205b8d84808878be40b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5641dd7 Drop RHEL 7 compatibility