$ git clone -n https://src.fedoraproject.org/rpms/perl-String-Format.git /var/lib/mock/f40-build-2630503-65673/root/chroot_tmpdir/scmroot/perl-String-Format
Cloning into '/var/lib/mock/f40-build-2630503-65673/root/chroot_tmpdir/scmroot/perl-String-Format'...
$ git fetch origin c29b64c556bb414a778758f88fce6f0e4e5c4ba0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-String-Format
 * [new ref]         c29b64c556bb414a778758f88fce6f0e4e5c4ba0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c29b64c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild