What is the ruling if a husband says to his wife, 'You are divorced, rather, you are divorced'?

Supporting text

Al-Qadi chose that two divorces occur because he intended to revoke the first and enact the second, but the first was not revoked, and the second occurred. However, the primary view is that only one divorce occurs, analogous to the case where one says, 'I owe you one dirham, rather one dirham,' where only one is owed.