(1) A plan of merger must be consented to by all of the general partners of a constituent limited partnership. Subject to s. 620.2110, the plan of merger must also be consented to by those limited partners who own a majority of the rights to receive distributions as limited partners at the time the consent is effective, provided, if there is more than one class or group of limited partners, the plan of merger must be consented to by those limited partners who own a majority of the rights to receive distributions as limited partners in that class or group at the time the consent is effective. The consents required by this subsection must be in, or evidenced by, a record. (2) Subject to s. 620.2110 and any contractual rights, after a merger is approved, and at any time before a filing is made under s. 620.2108, a constituent limited partnership may amend the plan or abandon the planned merger:
(a) As provided in the plan; and
(b) Except as prohibited by the plan,
with the same consent as was required to approve the plan.