Whenever a conditional apportionment has been made, and the county auditor has inadvertently and erroneously included in his certification of the outstanding bonded indebtedness of the school district the bonded indebtedness of another school district having the same, or substantially the same, boundaries, which bonded indebtedness is less than 2 percent of the total amount of the total bonded indebtedness certified, and thereafter an election upon the issuance of new bonds in the amount required by the board has been had and the vote thereon has been in favor of the

issuance of the bonds, and the board has certified to the Controller that the apportionment to the district has become final, the final apportionment is hereby confirmed, ratified, and validated, and any expenditure of money from the Public School Building Loan Fund according to the terms of the final apportionment is hereby confirmed, ratified, and validated.

Any bonds erroneously certified, however, shall not be taken into consideration in making the computation required by Section 15721.