Consequences of the early termination of a renewed limited contract

Dear all,

I completed an initial 2-year limited contract which ended in January. Now we will sign a new contract, likely also limited.

If I did not continue my employment (i.e. renew), I think I would be entitled to 42 days of EOSB plus one month of annual leave not taken.

If I sign a new limited contract with one-month notice period but leave before the end of that contract's term (and before completing 5 years of service), do I lose that accrued EOSB even though I completed the first contract?

Plus would I be liable to pay a 3-month penalty?