Notwithstanding Section 20636, if a member who is an academic employee of the California State University dies while on a leave with pay, or within 12 months following a leave with pay, during which the member received compensation in an amount less than the full compensation earnable by him or her when not on leave with pay, the benefit payable under subdivision (b) of Section 21532 shall be based on the full compensation earnable by the member when not on leave with pay.