The General Insurance Fund shall not be used for carrying out the provisions of section
1709 of this title, except as determined by the Secretary, or the provisions of section
1715e of this title to the extent that they involve mortgages the insurance for which is the obligation of the Cooperative Management Housing Insurance Fund created by section
1715e
(k) of this title, or the provisions of sections
1715n
(e),
1715x
(a)(2),
1715z,
1715z–1 and
1715z–2 of this title; and nothing in this section shall apply to or affect any mortgages, loans, commitments, or insurance under such provisions.