$ git clone -n https://src.fedoraproject.org/rpms/perl-DBIx-Class-OptimisticLocking.git /var/lib/mock/f39-build-1513597-35625/root/chroot_tmpdir/scmroot/perl-DBIx-Class-OptimisticLocking
Cloning into '/var/lib/mock/f39-build-1513597-35625/root/chroot_tmpdir/scmroot/perl-DBIx-Class-OptimisticLocking'...
$ git fetch origin 9fc662b1b99a3f230e4da50f1572201ad3135941:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-DBIx-Class-OptimisticLocking
 * [new ref]         9fc662b1b99a3f230e4da50f1572201ad3135941 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9fc662b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild