(1)Where a right is transmitted by virtue of section 2 or 9, the executor in question is entitled––
(a)to bring an action to enforce it, or
(b)if an action to enforce it was brought by the deceased but not concluded before the date of death, to be sisted as pursuer in that action.
(2)For the purposes of subsection (1)(b) an action is not to be taken to be concluded—
(a)while an appeal is competent, or
(b)before any appeal taken is disposed of.