If within the period of 12 months after ceasing to be employed as an electorate officer, a person becomes employed—
(a) as a public sector employee within the meaning of section 4 of the Public Administration Act 2004 ; or
(b) as a Ministerial officer under section 98 of the Public Administration Act 2004 ; or
(c) as a Parliamentary adviser under section 99 of the Public Administration Act 2004 —
the period of service as an electorate officer is to be recognised in determining any entitlements accruing as a result of becoming so employed in respect of which continuity of service is relevant unless the entitlement was paid out upon ceasing to be employed as an electorate officer.