Hereafter whenever any corporation, association or society, not for pecuniary profit, existing by virtue of any special law of this state, shall desire to avail itself of the right to amend its special charter so as to change its name, to change its place of business, to enlarge or change the object for which it was formed, to enlarge or change its powers in respect of owning, holding or using real or personal property or any other of its powers, to vest in a single governing body of trustees, directors or managers the corporate powers and other powers previously vested in two or more governing bodies, to provide the method of electing members of such governing body and their terms of office, to empower such governing body to elect a chairman and any other officers and to appoint committees, from its members, with such duties and powers as may be assigned and delegated thereto by the governing body, to recognize and give effect to changes in the name of any religious denomination or other organization with which such corporation, association or society is affiliated, or to increase or decrease the number of its trustees, directors, or managers, as now authorized or may hereafter be authorized by general law, or to elect its trustees, directors or managers without the approval or ratification of the religious denomination or other organization specified in its special charter, where the representatives of such religious denomination or other organization shall have waived and relinquished such right of consent, approval or ratification to the election of its trustees, directors or managers, such amendment shall not operate as a waiver, release or forfeiture of any of the other powers, rights or privileges of such corporation, association or society granted to or secured under and by virtue of such special charter.
     However, if such corporation by virtue of its special charter or any amendment thereto was granted any exemption or immunity from taxation in respect of any amount of real estate or other property specified in such special charter or amendment, nothing in this Act or any amendment to such special charter authorized by this Act shall be construed to permit any enlargement or increase of such amount of real estate or other property or such exemption or immunity from taxation as provided in such special charter or any amendment thereto.