$ git clone -n https://src.fedoraproject.org/rpms/screenruler.git /var/lib/mock/f45-build-35704-698/root/chroot_tmpdir/scmroot/screenruler
Cloning into '/var/lib/mock/f45-build-35704-698/root/chroot_tmpdir/scmroot/screenruler'...
$ git fetch origin 62ded8337d02b6fe1789cde707c6ec26cbac5e6e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/screenruler
 * [new ref]         62ded8337d02b6fe1789cde707c6ec26cbac5e6e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 62ded83 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild