Where, but for this section, an amount would be included in, or allowable as a deduction from, the assessable income of a taxpayer of a year of income under section 159GQ in respect of the whole or a part of a payment under a qualifying security, no amount shall be so included or allowable unless the payment or a part of the payment, when actually made or liable to be made, would, disregarding section 128D, be included in the assessable income of the taxpayer of a year of income.