Neither the governing body nor any person executing any bond authorized by this act [5-5-1 to 5-5-23, 5-5-25 to 5-5-27 N.M. Stat. Ann.] shall be liable personally thereon by reason of its issuance hereunder. Except for general obligation bonds, bonds issued pursuant to this act shall not be a debt, liability or general obligation of the municipality issuing them, and it shall not be liable thereon, nor shall it thereby pledge its full faith and credit for their payment, nor shall the bonds be payable out of any funds other than the revenues and proceeds pledged to the payment thereof; and each such bond shall in substance so state. Such bonds shall not constitute a debt or indebtedness within the meaning of any constitutional, statutory or charter debt limitation or restriction. The payment of bonds shall not be secured by an encumbrance, mortgage or other pledge of property of the municipality, except for revenues and tax proceeds pledged for their payment. No property of the municipality, subject to said exceptions, shall be liable to be forfeited or taken in payment of the bonds.