$ git clone -n https://src.fedoraproject.org/rpms/perl-YAML-PP-Ref.git /var/lib/mock/f40-build-2310455-57424/root/chroot_tmpdir/scmroot/perl-YAML-PP-Ref
Cloning into '/var/lib/mock/f40-build-2310455-57424/root/chroot_tmpdir/scmroot/perl-YAML-PP-Ref'...
$ git fetch origin 6fd07f18893585de84a8e8ab67599a8471beae67:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-YAML-PP-Ref
 * [new ref]         6fd07f18893585de84a8e8ab67599a8471beae67 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6fd07f1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild