Sec. 15. If a proceeding is pending against a mutual insurance company that is the subject of a plan of reorganization under this chapter:
(1) the proceeding may be continued against the reorganized insurer under its former name after the effective date of the reorganization, as if the reorganization had not occurred; or
(2) the reorganized insurer that succeeds to the mutual insurance company's business may be substituted in the proceeding for the mutual insurance company.