Notwithstanding any other provision of law, the property tax apportionment factors applied in allocating property tax revenues in the County of Santa Clara for the Santa Clara County Central Fire Protection District for each fiscal year from the 1988–89 fiscal year through the 1996–97 fiscal year shall be deemed correct, except to the extent that those apportionment factors reflect any calculation errors made in implementing Article 3 (commencing with Section 97). However, commencing with the 1997–98 fiscal year, property tax apportionment factors applied in allocating property tax revenue in the County of Santa Clara shall be determined on the basis of property tax apportionment factors for prior fiscal years that have been fully corrected or adjusted as would be required in the absence of the preceding sentence.