If a majority of the votes cast by the qualified voters voting on the county constitution are in favor of the proposal, then the county constitution shall be adopted. If a majority of the votes cast by the qualified voters voting thereon are opposed to the proposal, the county constitution shall not be adopted. A proposal to create a county constitution may not be resubmitted to the voters except after the voters approve the selection of a commission to draft a county constitution as provided in § 18(m) of this Article and such proposal shall not be resubmitted to the voters until two years after the proposed county constitution has been rejected.