(a) Unless otherwise provided in the certificate of organization or operating agreement of the limited liability company, a plan of merger must be consented to by two-thirds in interest of the members of the limited liability company.
(b) Subject to any contractual rights, after a merger is approved, and at any time before a certificate of merger becomes effective, a merging limited liability company may amend the plan of merger or abandon the merger: (1) As provided in the plan; or (2) except as otherwise prohibited in the plan, with the same consent as was required to approve the plan.