$ git clone -n https://src.fedoraproject.org/rpms/openfortivpn.git /var/lib/mock/f45-build-21045-577/root/chroot_tmpdir/scmroot/openfortivpn
Cloning into '/var/lib/mock/f45-build-21045-577/root/chroot_tmpdir/scmroot/openfortivpn'...
$ git fetch origin 8c1f85990349da69170621ee5389ae1cd21742c7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openfortivpn
 * [new ref]         8c1f85990349da69170621ee5389ae1cd21742c7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8c1f859 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild