(1)Where mines and minerals of any description in any land have, by virtue of section 7, been excepted from the application of section 1(1) and—
(a)no application for the registration under section 8 of any estate in the mines and minerals of that description in that land is duly made under subsection (1) or (2) of that section, or
(b)every such application which is so made is or is treated as withdrawn,
then, as from the first appointed day (or, where a sole application or a last outstanding application is or is treated as withdrawn at a time subsequent to that day, as from that time), section 1(1) shall be deemed to have had effect with respect to the mines and minerals of that description in that land as if section 7 had not been passed, but subject to subsection (2).
(2)Subsection (1) shall not render unlawful anything otherwise lawfully done before the first appointed day (or, as the case may be, the time mentioned in that subsection) by or on behalf of any person mentioned in section 7, or any successor in title of his, in or for the purpose of working the mines and minerals in question.