$ git clone -n https://src.fedoraproject.org/rpms/perl-PAR-Packer.git /var/lib/mock/f40-build-779363-130302/root/chroot_tmpdir/scmroot/perl-PAR-Packer
Cloning into '/var/lib/mock/f40-build-779363-130302/root/chroot_tmpdir/scmroot/perl-PAR-Packer'...
$ git fetch origin 4b5b94b8c1d1a17c38a9dae89b1c1063a83392d7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-PAR-Packer
 * [new ref]         4b5b94b8c1d1a17c38a9dae89b1c1063a83392d7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4b5b94b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild