$ git clone -n https://src.fedoraproject.org/rpms/perl-Geo-Distance.git /var/lib/mock/f45-build-23737-599/root/chroot_tmpdir/scmroot/perl-Geo-Distance
Cloning into '/var/lib/mock/f45-build-23737-599/root/chroot_tmpdir/scmroot/perl-Geo-Distance'...
$ git fetch origin d530785ba6e770dd0a27fb5d1f82c46b4891d0ea:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Geo-Distance
 * [new ref]         d530785ba6e770dd0a27fb5d1f82c46b4891d0ea -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d530785 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild