8In section 52 (special provision for surviving spouses), after subsection (3) insert—
“(3A)In subsection (3) the references to additional pension in a Category A or Category B retirement pension do not include any amount of additional pension attributable to units of additional pension.
(3B)If an amount of additional pension in the Category B retirement pension is attributable to units of additional pension, the additional pension in the Category A retirement pension is increased by that amount (in addition to any increase under subsection (3)).”