From and after the passing of this Act no select Vestry shall be formed
under the provisions of the Church Building Act, and every such select
Vestry already formed under such provisions shall be and is hereby
declared to be abolished, and all the powers and provisions therein
enacted relative to such select Vestries shall henceforth cease and
determine, provided that all matters and things done by any such select
Vestry in pursuance of any powers given them by such Acts, or any of
them, shall be and remain as valid as if such select Vestry had not been
abolished.