It shall be lawful for any irrigation district which has issued local improvement district bonds for the improvements, as in this chapter provided, to issue in place thereof an amount of local improvement district or revenue refunding bonds of the irrigation district in accordance with chapter
39.53 RCW: PROVIDED, HOWEVER, That the issuance of the bonds shall not release the lands of the local improvement district or districts from liability for special assessments for the payment thereof: AND PROVIDED FURTHER, That the lien of any issue of bonds of the district prior in point of time to the issue of bonds or local improvement district bonds herein provided for shall be deemed a prior lien.