The provisions of Chapter 577 of the Statutes of 1971 in no way eliminate fiscal obligation incurred prior to July 1, 1971, by any county or the state under Article 5 (commencing with Section 14150) of Chapter 7 of Part 3 of Division 9 of the Welfare and Institutions Code. After June 30, 1971, all uncollected county share amounts under said Article 5 due the state for prior periods remain an obligation of the county to the state.