Notwithstanding the provisions of any statute to the contrary, in any county which has been declared by Kan. Stat. Ann. §§ 19-2654 to be an urban area, all precinct boundary lines shall be established and may be changed from time to time, exclusively by the election commissioner of any such county. No precinct shall be divided by a ward boundary line, and if any ward territory is changed, under the provisions of this act, such that a precinct is divided by a ward boundary line, such county election commissioner shall change the boundaries of such precincts in accordance with this act within one (1) year.