A member of the legislature of the state of Minnesota who held a position, other than a temporary position, in the employ of a private employer in Minnesota at the commencement of service in a legislative session, who applies for reemployment not later than 30 days after the last legislative day in each calendar year, shall be continued in or restored to the position, or to a position of like seniority, status and pay. Retirement benefits under an employer-sponsored pension or retirement plan shall not be reduced because of time spent in legislative service.