(1) Subject to subsection (3), where there is a cause of action for relief
from the consequences of a mistake, the time which elapses after a
limitation period fixed by or under this Act for the cause of action commences
to run and before the date on which a person having (either solely or with
other persons) the cause of action first discovers, or may with reasonable
diligence discover, the mistake does not count in the reckoning of the
limitation period for an action on the cause of action by the person or by a
person claiming through the person.
(2) Subsection (1) has effect whether the
limitation period for the cause of action would, but for this section, expire
before or after the date mentioned in that subsection.
(3) Where property is,
after a transaction in which a mistake is made, purchased for valuable
consideration by a person who does not, at the time of the purchase, know or
have reason to believe that the mistake has been made, subsection (1) does not
apply to a limitation period for a cause of action for relief from the
consequences of the mistake against the purchaser or a person claiming through
the purchaser.