$ git clone -n https://src.fedoraproject.org/rpms/gnome-todo.git /var/lib/mock/f40-build-2240798-53649/root/chroot_tmpdir/scmroot/gnome-todo
Cloning into '/var/lib/mock/f40-build-2240798-53649/root/chroot_tmpdir/scmroot/gnome-todo'...
$ git fetch origin 23071bcbf1057e118eca77913edf02ec5ffd8456:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-todo
 * [new ref]         23071bcbf1057e118eca77913edf02ec5ffd8456 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 23071bc Rebuilt for evolution-data-server soname version bump