At a general meeting of a public company, a motion for the appointment of two or more persons as directors of the company by a single resolution shall not be made, unless a resolution that it shall be so made has first been agreed to by the meeting without any vote being given against it.

A resolution moved in contravention of this section is void, whether or not its being so moved was objected to at the time; but where a resolution so moved is passed, no provision for the automatic reappointment of retiring directors in default of another appointment applies.

For purposes of this section, a motion for approving a person's appointment, or for nominating a person for appointment, is to be treated as a motion for his appointment.

Nothing in this section applies to a resolution altering the company's articles.