Anything in this part to the contrary notwithstanding, any farm labor center containing more than 20 per centum of standard housing units heretofore or hereafter acquired by a housing authority as a low rent housing project in accordance with the provisions of Article XXXIV of the Constitution of the State of California and following an election held for that purpose in the manner provided in that article, shall be deemed to be a “housing project” as defined by Section 34212 of this code and shall be operated by the housing authority so acquiring the same under and pursuant to the Housing Authorities Law of the State of California, and shall not be deemed to be or operated as a farm labor center under this part.