Other remedies available at death.

(a) At the death of a community-property spouse, the surviving community-property spouse or a personal representative, heir, or nonprobate transferee of the decedent may assert a right based on an act of: (1) The surviving community-property spouse or decedent during the marriage or other relationship under which community property then could be acquired; or (2) The decedent that takes effect at the death of the decedent. (b) In determining a right under subsection (a) of this section and corresponding remedy, the court: (1) Shall apply equitable principles; and (2) May consider the community property law of the jurisdiction where the decedent or surviving community-property spouse was domiciled when property was acquired or enhanced.