A plaintiff may cumulate against the same defendant two or more actions even though based on different grounds, if:
(1) Each of the actions cumulated is within the jurisdiction of the court and is brought in the proper venue; and
(2) All of the actions cumulated are mutually consistent and employ the same form of procedure.
Except as otherwise provided in Article 3657, inconsistent or mutually exclusive actions may be cumulated in the same judicial demand if pleaded in the alternative.