$ git clone -n https://src.fedoraproject.org/rpms/perl-Geo-Forward.git /var/lib/mock/f45-build-23743-599/root/chroot_tmpdir/scmroot/perl-Geo-Forward
Cloning into '/var/lib/mock/f45-build-23743-599/root/chroot_tmpdir/scmroot/perl-Geo-Forward'...
$ git fetch origin 51f2c2e03893beff4200965030e62962bb3a9d04:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Geo-Forward
 * [new ref]         51f2c2e03893beff4200965030e62962bb3a9d04 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 51f2c2e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild