$ git clone -n https://src.fedoraproject.org/rpms/f35-backgrounds.git /var/lib/mock/f41-build-1842005-24963/root/chroot_tmpdir/scmroot/f35-backgrounds
Cloning into '/var/lib/mock/f41-build-1842005-24963/root/chroot_tmpdir/scmroot/f35-backgrounds'...
$ git fetch origin 001bccfe0d90b72f19a5b8be79a00a0ef319cea5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/f35-backgrounds
 * [new ref]         001bccfe0d90b72f19a5b8be79a00a0ef319cea5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 001bccf Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild