The hearing shall be conducted by the Board of Supervisors in accordance with Section 907, and all references therein to the Zoning Hearing Board shall, for the purposes of this section, be references to the Board of Supervisors; provided, however, that the provisions of Section 907(1.2) and (9) shall not apply and the provisions of Section 916.1 shall control. If a municipality does not accept a landowner's curative amendment brought in accordance with this subsection and a court subsequently rules that the challenge has merit, the court's decision shall not result in a declaration of invalidity for the entire zoning ordinance and map, but only for those provisions which specifically relate to the landowner's curative amendment and challenge.