Suits against municipal corporations as defendant or codefendant shall be commenced only in the county in which the municipal corporation is situated, or if the municipal corporation is situated in more than one county, then suits against the municipal corporation shall be commenced only in that county wherein the seat of government of the municipal corporation is situated; except that:
§ 508.050, RSMo
RSMo 1939 § 875, A.L. 1955 p. 312, A.L. 2012 S.B. 628 merged with S.B. 636