(a) The probate court shall have original jurisdiction over any action to vacate, set aside, or amend its order admitting a will to probate which alleges:
(1) That another will is entitled to be admitted to probate; or
(2) That a codicil to the probated will is entitled to be admitted to probate.
(b) Any such action shall be combined with a petition to probate in solemn form the other will or codicil. The court shall consider the petition to probate together with the action to vacate, set aside, or amend; and the court shall grant relief as is appropriate with respect to each matter.