$ git clone -n https://src.fedoraproject.org/rpms/perl-IO-Digest.git /var/lib/mock/f39-build-1434458-31927/root/chroot_tmpdir/scmroot/perl-IO-Digest
Cloning into '/var/lib/mock/f39-build-1434458-31927/root/chroot_tmpdir/scmroot/perl-IO-Digest'...
$ git fetch origin d3a24e27544c6329e1fe09af85cd6ac1adc397c6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-IO-Digest
 * [new ref]         d3a24e27544c6329e1fe09af85cd6ac1adc397c6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d3a24e2 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild