$ git clone -n https://src.fedoraproject.org/rpms/cairo-dock.git /var/lib/mock/f40-build-801501-143803/root/chroot_tmpdir/scmroot/cairo-dock
Cloning into '/var/lib/mock/f40-build-801501-143803/root/chroot_tmpdir/scmroot/cairo-dock'...
$ git fetch origin 2549f2fe5f734cccc25aec9b3990df3914b17a7b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cairo-dock
 * [new ref]         2549f2fe5f734cccc25aec9b3990df3914b17a7b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2549f2f SPDX confirmation