An employee of an employers’ group who benefits from a profit-sharing, incentive or employee savings plan agreement, set up in a company of the group to which he/she is seconded, which provides for a seniority condition which may not exceed three months, in accordance with the provisions of article L. 3342-1, is deemed to have three months’ seniority if he/she has been seconded to the company for a total period of at least sixty days during the last financial year.