自定义管理表单不显示额外的字段

I have a custom user model:

我有一个自定义用户模型:

class User(AbstractUser):

    # First Name and Last Name do not cover name patterns
    # around the globe.
    name = models.CharField(_("Name of User"), blank=True, max_length=255)

    # Customer account
    customer_account = models.ForeignKey(CustomerAccount, null=True, blank=True)

    def __str__(self):
        return self.username

    def get_absolute_url(self):
        return reverse('users:detail', kwargs={'username': self.username})
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