$ git clone -n https://src.fedoraproject.org/rpms/vkd3d.git /var/lib/mock/f38-build-side-42-init-devel-742809-27657/root/chroot_tmpdir/scmroot/vkd3d
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-742809-27657/root/chroot_tmpdir/scmroot/vkd3d'...
$ git fetch origin ce66c886e718954433d86ad7e34dc04bcec3e23c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vkd3d
 * [new ref]         ce66c886e718954433d86ad7e34dc04bcec3e23c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ce66c88 Update to 1.7