Where a takeover offer is made and, during the period beginning with the date of the offer and ending when the offer can no longer be accepted, the offeror—
acquires or unconditionally contracts to acquire any of the shares to which the offer relates, but
does not do so by virtue of acceptances of the offer,
those shares are treated for the purposes of this Chapter as excluded from those to which the offer relates.
This section is subject to section 979(8) and (9).