Whenever there shall exist any indebtedness at the time of the change of said city from the second class to the third class, this act shall in no manner change the amount of taxes that may be levied under the laws pertaining to cities of the second class until such indebtedness shall have been paid, but in all other respects such city shall be governed by the laws pertaining to cities of the third class.
K.S.A. 14-903