$ git clone -n https://src.fedoraproject.org/rpms/f25-backgrounds.git /var/lib/mock/f41-build-1841941-24963/root/chroot_tmpdir/scmroot/f25-backgrounds
Cloning into '/var/lib/mock/f41-build-1841941-24963/root/chroot_tmpdir/scmroot/f25-backgrounds'...
$ git fetch origin 553da3ee6ff8050a9d45f32bca96e77aed4c6f9b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/f25-backgrounds
 * [new ref]         553da3ee6ff8050a9d45f32bca96e77aed4c6f9b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 553da3e Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild