$ git clone -n https://src.fedoraproject.org/rpms/golang-uber-multierr.git /var/lib/mock/f45-build-12772-443/root/chroot_tmpdir/scmroot/golang-uber-multierr
Cloning into '/var/lib/mock/f45-build-12772-443/root/chroot_tmpdir/scmroot/golang-uber-multierr'...
$ git fetch origin 6f5156687f3fddebd8cfd1ffdf3ee7128194221c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-uber-multierr
 * [new ref]         6f5156687f3fddebd8cfd1ffdf3ee7128194221c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6f51566 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild