75. Any deferred pension is cancelled if the employee returns to pensionable employment under the plan and the years of service accumulated by the employee shall be added to the years of service already credited.
However, if the employee had elected to receive an amount and a deferred pension in accordance with section 51 of the Act respecting the Government and Public Employees Retirement Plan (chapter R-10) as it read on 31 December 1990, the recomputed pension is reduced by that part of the annual value of the original pension that was paid to the employee.