$ git clone -n https://src.fedoraproject.org/rpms/perl-Text-Reform.git /var/lib/mock/f39-build-1439729-32280/root/chroot_tmpdir/scmroot/perl-Text-Reform
Cloning into '/var/lib/mock/f39-build-1439729-32280/root/chroot_tmpdir/scmroot/perl-Text-Reform'...
$ git fetch origin 96e8b9b47882d8012a80a3784f9739db63aaaf50:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Text-Reform
 * [new ref]         96e8b9b47882d8012a80a3784f9739db63aaaf50 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 96e8b9b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild