$ git clone -n https://src.fedoraproject.org/rpms/onednn.git /var/lib/mock/f42-build-3460619-45515/root/chroot_tmpdir/scmroot/onednn
Cloning into '/var/lib/mock/f42-build-3460619-45515/root/chroot_tmpdir/scmroot/onednn'...
$ git fetch origin b529aa3557d3d158ecd020e1a3f1d1aa300c5ced:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/onednn
 * [new ref]         b529aa3557d3d158ecd020e1a3f1d1aa300c5ced -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b529aa3 Update to 3.7.2