$ git clone -n https://src.fedoraproject.org/rpms/libzdb.git /var/lib/mock/f41-build-side-1-2647774-27313/root/chroot_tmpdir/scmroot/libzdb
Cloning into '/var/lib/mock/f41-build-side-1-2647774-27313/root/chroot_tmpdir/scmroot/libzdb'...
$ git fetch origin fcaf8d71fdc7159207da42d7af312d86782dd3db:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libzdb
 * [new ref]         fcaf8d71fdc7159207da42d7af312d86782dd3db -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fcaf8d7 convert license to SPDX