$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-Able.git /var/lib/mock/f39-build-1435119-31970/root/chroot_tmpdir/scmroot/perl-Test-Able
Cloning into '/var/lib/mock/f39-build-1435119-31970/root/chroot_tmpdir/scmroot/perl-Test-Able'...
$ git fetch origin d7f2e308b1887076339fa9fb34df5e65ba1b90c3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-Able
 * [new ref]         d7f2e308b1887076339fa9fb34df5e65ba1b90c3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d7f2e30 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild