If:
(a) a company becomes a * subsidiary member of a * consolidated group; and
(b) apart from this section, things happening in relation to the company before it became a subsidiary member would, because of section 701 - 5 (the entry history rule), be taken into account as things happening in relation to the * head company for working out the head company's * aggregated turnover for the purposes of section 355 - 100 (tax offsets for R&D);
the things happening are not to be taken into account as mentioned in paragraph (b).