$ git clone -n https://src.fedoraproject.org/rpms/perl-Set-Object.git /var/lib/mock/f40-build-2630138-65632/root/chroot_tmpdir/scmroot/perl-Set-Object
Cloning into '/var/lib/mock/f40-build-2630138-65632/root/chroot_tmpdir/scmroot/perl-Set-Object'...
$ git fetch origin 20745f0912b2360e49eca9a8c95dded9d2d6984c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Set-Object
 * [new ref]         20745f0912b2360e49eca9a8c95dded9d2d6984c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 20745f0 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild