Jsonfield duplicating records in production database after running manage.py test

[Christian Maillefaud]

Model:

class PermissionTemplate(models.Model):
    site = models.ForeignKey(
        Site,
        verbose_name=_("site"),
        on_delete=models.CASCADE,
        related_name="%(app_label)s_%(class)s_site"
    )
    on_site = CurrentSiteManager()
    name = models.CharField(_("nome"), max_length=30)
    values = JSONField()

Code in TestCase:

class TestPermission(TestCase):
     @classmethod
     def setUpTestData(self):      
            self.site, created = Site.objects.get_or_create(
                defaults={
                    'domain': 'testserver'
                },
                id=settings.SITE_ID)
            self.permission_template, created = \
                 PermissionTemplate.on_site.get_or_create(
                     site=self.site,
                     name='test_template',
                     defaults={
                        'values': {
                            'open_imovel': 1,
                            'named_imovel': 3,
                            'sharing': 0,
                            'owner_data': 0,
                            'aggrements': 0,
                            'users': 0,
                            'internal': True,
                            'default': True
                        }
                    }
                )

[Tim Graham]

Hi, the description doesn't indicate an obvious problem with Django. I'm doubtful I'll be able to reproduce this given the information you provided. The problem seems more likely related to your settings. I'd suggest to put together a minimal sample project that reproduces the issue and ask for help debugging it on our support channels. Or, if you can debug the issue yourself, please reopen with an explanation of why Django is at fault. Thanks.