5. Where a claimant has ceased to occupy what was formerly the dwelling occupied as the home following the claimant’s estrangement or divorce from, or dissolution of the claimant’s civil partnership with, the claimant’s former partner, that dwelling for a period of 26 weeks from the date on which the claimant ceased to occupy that dwelling or, where that dwelling is occupied as the home by the former partner who is a lone parent, for as long as it is so occupied.