$ git clone -n https://src.fedoraproject.org/rpms/dwarves.git /var/lib/mock/f40-build-2235401-53434/root/chroot_tmpdir/scmroot/dwarves
Cloning into '/var/lib/mock/f40-build-2235401-53434/root/chroot_tmpdir/scmroot/dwarves'...
$ git fetch origin 6fd92939cb20e1c578b4a1f4f39548ce1043cdca:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dwarves
 * [new ref]         6fd92939cb20e1c578b4a1f4f39548ce1043cdca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6fd9293 Migrate license to SPDX