$ git clone -n https://git.cclinux.org/stage/rpms/xxhash.git /var/lib/mock/dist-circle9-build-119529-84358/root/chroot_tmpdir/scmroot/xxhash
Cloning into '/var/lib/mock/dist-circle9-build-119529-84358/root/chroot_tmpdir/scmroot/xxhash'...
$ git fetch origin 97f19f5d5615e5334905c9cab4e8dacf39273983:KOJI_FETCH_HEAD
From https://git.cclinux.org/stage/rpms/xxhash
 * [new ref]         97f19f5d5615e5334905c9cab4e8dacf39273983 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 97f19f5 import xxhash-0.8.2-1.el9