Bonds issued pursuant to Kan. Stat. Ann. § 19-15,140, and amendments thereto, by Seward and Wyandotte counties shall not be subject to or within any bonded debt limitation fixed by any other law of this state. Any bonds issued pursuant to Kan. Stat. Ann. § 19-15,140, and amendments thereto, by Shawnee county shall be subject to the bonded debt limit of the county unless the proposition to exceed such bonded debt limitation has been submitted to and approved by a majority of the electors voting in favor thereof at an election called and held thereon. Such proposition shall state the amount of the county’s total bonded indebtedness which is outstanding at the time of such election and the amount by which the bonds proposed to be issued will exceed the bonded debt limit of the county. Elections upon such proposition shall be noticed, called and held in the manner prescribed by the general bond law.