$ git clone -n https://src.fedoraproject.org/rpms/f30-backgrounds.git /var/lib/mock/f41-build-1683026-24255/root/chroot_tmpdir/scmroot/f30-backgrounds
Cloning into '/var/lib/mock/f41-build-1683026-24255/root/chroot_tmpdir/scmroot/f30-backgrounds'...
$ git fetch origin 7a91197d5f459f0e38a82d9aee21b831c34b255d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/f30-backgrounds
 * [new ref]         7a91197d5f459f0e38a82d9aee21b831c34b255d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a91197 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild