If—
as a result of section 87D, no account is taken of a capital payment (or a part of a capital payment) for the purposes of sections 87 and 87A,
the recipient beneficiary is an individual who is temporarily non-resident, and
the payment (or part) is received in the beneficiary's temporary period of non-residence,
the payment (or part) is treated for the purposes of sections 87 and 87A as received (by the beneficiary) in the beneficiary's period of return, and account is to be taken of it accordingly for those purposes.
Part 4 of Schedule 45 to FA 2013 explains—
when an individual is to be regarded as "temporarily non-resident", and
what "the temporary period of residence" and "the period of return" mean.