All cases in which there may arise a question of the validity of the organization of a district, or a question of the validity of any proceeding under sections 247.230 to 247.670, shall be advanced on the docket as a matter of immediate public interest and concern, and heard at the earliest practicable moment. The courts shall be open at all times for the purposes of sections 247.230 to 247.670.

(L. 1949 p. 350 § 43)