Where an employee who has wrongfully terminated a contract of employment enters into a new contract of employment, the new employer is jointly and severally liable for any damage caused to the previous employer in the following cases:
1° If it is shown that the new employer intervened in the termination ;
2° If the new employer took on an employee whom he knew to be already bound by a contract of employment;
3° If the new employer continued to employ the employee after learning that the employee was still bound to another employer by a contract of employment. In this case, the new employer is not liable if, at the time he was notified, the employment contract improperly terminated by the employee had expired, either in the case of fixed-term contracts by the expiry of the term, or in the case of open-ended contracts by the expiry of the notice period, or if a period of fifteen days had elapsed since the contract was terminated.