$ git clone -n https://src.fedoraproject.org/rpms/perl-Git-Repository.git /var/lib/mock/f38-build-side-42-init-devel-707932-27195/root/chroot_tmpdir/scmroot/perl-Git-Repository
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-707932-27195/root/chroot_tmpdir/scmroot/perl-Git-Repository'...
$ git fetch origin 5d619e77a83df623a1944b2f612fed0003d7b695:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Git-Repository
 * [new ref]         5d619e77a83df623a1944b2f612fed0003d7b695 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5d619e7 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild