$ git clone -n https://src.fedoraproject.org/rpms/highway.git /var/lib/mock/f40-build-781200-131508/root/chroot_tmpdir/scmroot/highway
Cloning into '/var/lib/mock/f40-build-781200-131508/root/chroot_tmpdir/scmroot/highway'...
$ git fetch origin a4f2789ea07709f426c0e7ab172e2addc7a56528:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/highway
 * [new ref]         a4f2789ea07709f426c0e7ab172e2addc7a56528 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a4f2789 Update to version 1.1.0; Fixes RHBZ#2264702