$ git clone -n https://src.fedoraproject.org/rpms/lzma-sdk.git /var/lib/mock/f40-build-2186342-51352/root/chroot_tmpdir/scmroot/lzma-sdk
Cloning into '/var/lib/mock/f40-build-2186342-51352/root/chroot_tmpdir/scmroot/lzma-sdk'...
$ git fetch origin eb8fb78a909c27a489b0625634eae3afb8d4e8e6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lzma-sdk
 * [new ref]         eb8fb78a909c27a489b0625634eae3afb8d4e8e6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb8fb78 Rebase to 22.01 (based on Gwyn Ciesla's spec), resolves: rhbz#1546091