The hearing shall be conducted by the Board of Supervisors in accordance with Section 907[2], 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.