Ordinance No. 1095 of the City, as amended, is hereby repealed; provided, however, such repeal shall not constitute a forgiveness of any violation of said ordinance, as amended, to the effective date of the repeal or bar to prosecutions or other remedies with respect thereto. Nothing in this Chapter shall extend the permitted continuation of any nonconforming use or structure which was nonconforming under any prior zoning law and remains nonconforming under this Chapter. Uses and buildings which are existing under a variance, special approval, or special use permit granted under any previous law shall not be considered as nonconforming and shall be permitted to continue under the conditions and regulations imposed in the granting of such variance, special approval, or special use permit.