A. If a spouse willfully deserts or abandons the other spouse and such desertion or abandonment continues until the death of the other spouse, the party who deserted the deceased spouse shall be barred of all interest in the decedent's estate by intestate succession, elective share, exempt property, family allowance, and homestead allowance.
B. If a parent willfully deserts or abandons his minor or incapacitated child and such desertion or abandonment continues until the death of the child, the parent shall be barred of all interest in the child's estate by intestate succession.