If a mother relinquishes for or consents to, or proposes to relinquish for or consent to, the adoption of a child who has a presumed parent under Section 7611, the presumed parent shall be given notice of the adoption proceeding and have the rights provided under Part 2 (commencing with Section 8600) of Division 13, unless that parent’s relationship to the child has been previously terminated or determined by a court not to exist or the presumed parent has voluntarily relinquished for or consented to the adoption of the child.