839.10  No officer or board to bid for public work.--No state or county officer nor member of any state or county board shall bid for, or enter into, or be in any manner interested in any contract for public work for which the said officer or state or county board is or may be a party to the letting. Any person violating the provisions of this section shall be guilty of a misdemeanor of the first degree, punishable as provided in s. 775.082 or s. 775.083; provided, that no member of any board aforesaid who shall have recorded her or his vote against the letting of such contract, or who shall have been absent at the taking of the vote thereon, shall be convicted of a violation of this section.