No more than the pay for a period of 30 calendar days shall be allowed under the provisions of Section 395.01 or 395.02 for any one military leave of absence or during any one fiscal year, except as otherwise authorized by resolution of the legislative body of a public agency or as provided in a memorandum of understanding reached with an employee organization pursuant to Chapter 10 (commencing with Section 3500) of Division 4 of Title 1 of the Government Code.