$ git clone -n https://src.fedoraproject.org/rpms/perl-Set-Object.git /var/lib/mock/f40-build-2308209-57284/root/chroot_tmpdir/scmroot/perl-Set-Object
Cloning into '/var/lib/mock/f40-build-2308209-57284/root/chroot_tmpdir/scmroot/perl-Set-Object'...
$ git fetch origin c31d84baada29741ffd45ec56f9ce910b09ce0a4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Set-Object
 * [new ref]         c31d84baada29741ffd45ec56f9ce910b09ce0a4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c31d84b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild