$ git clone -n https://src.fedoraproject.org/rpms/deepin-wallpapers.git /var/lib/mock/f40-build-2343139-59862/root/chroot_tmpdir/scmroot/deepin-wallpapers
Cloning into '/var/lib/mock/f40-build-2343139-59862/root/chroot_tmpdir/scmroot/deepin-wallpapers'...
$ git fetch origin b93d1b0bbe0346b2a8c1d508b0dba7c95aa41fdb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/deepin-wallpapers
 * [new ref]         b93d1b0bbe0346b2a8c1d508b0dba7c95aa41fdb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b93d1b0 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild