That whenever any irrigation district has been placed in the hands of a receiver by order of court, such receiver shall be vested with all powers and authority which, in the absence of such receivership, would be vested in the board of directors of such district; provided, however, that in all cases where, in the absence of such receivership, a formal resolution of the board of directors of such district would be necessary for the exercise of some power or authority or the accomplishment of some purpose, such receiver shall only exercise such power or authority or accomplish such purpose when authorized so to do by order of the court in which such receivership proceedings are pending.