$ git clone -n https://src.fedoraproject.org/rpms/rbldnsd.git /var/lib/mock/f45-build-34368-685/root/chroot_tmpdir/scmroot/rbldnsd
Cloning into '/var/lib/mock/f45-build-34368-685/root/chroot_tmpdir/scmroot/rbldnsd'...
$ git fetch origin 97828ff5459438436d27d3fa3aa6aeb7c697fc56:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rbldnsd
 * [new ref]         97828ff5459438436d27d3fa3aa6aeb7c697fc56 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 97828ff Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild