(a) An amendment to a corporation's certificate of formation does not affect:
(1) any existing cause of action in favor of or against the corporation;
(2) any pending suit to which the corporation is a party; or
(3) the existing rights of any person.
(b) If a corporation's name is changed by amendment to the certificate of formation, a suit brought by or against the corporation under its former name does not abate for that reason.