It is hereby declared to be the legislative intent that, if any provision or provisions of this Zoning Code, or the application thereof to any zoning lot, building, structure, or tract of land, are declared by a court of competent jurisdiction to be invalid or ineffective, in whole or in part, or to be inapplicable to any person or situation, the effect of such decision shall be limited to the provision or provisions which are expressly stated in the decision to be invalid or ineffective, and shall apply only to the zoning lot, building, structure, or tract of land immediately involved in the controversy. All other provisions of this Zoning Code shall continue to be fully effective.