Fix for ticket 12685

django/core/serializers/base.py

@@ -166,11 +166,11 @@ def __repr__(self):
         return "<DeserializedObject: %s(pk=%s)>" % (
             self.object._meta.label, self.object.pk)
 
-    def save(self, save_m2m=True, using=None):
+    def save(self, save_m2m=True, using=None, **kwargs):
         # Call save on the Model baseclass directly. This bypasses any
         # model-defined save. The save is also forced to be raw.
         # raw=True is passed to any pre/post_save signals.
-        models.Model.save_base(self.object, using=using, raw=True)
+        models.Model.save_base(self.object, using=using, raw=True, **kwargs)
         if self.m2m_data and save_m2m:
             for accessor_name, object_list in self.m2m_data.items():
                 setattr(self.object, accessor_name, object_list)

tests/serializers/tests.py

@@ -11,7 +11,7 @@
 from django.core import management, serializers
 from django.db import connection, transaction
 from django.test import (
-    SimpleTestCase, TestCase, TransactionTestCase, override_settings,
+    SimpleTestCase, TestCase, TransactionTestCase, mock, override_settings,
     skipUnlessDBFeature,
 )
 from django.test.utils import Approximate
@@ -278,6 +278,14 @@ def test_deterministic_mapping_ordering(self):
             'second_category_pk': categories[1],
         })
 
+    def test_deserialize_force_insert(self):
+        """Tests that deserialized content can be saved with force_insert as a parameter."""
+        serial_str = serializers.serialize(self.serializer_name, [self.a1])
+        deserial_obj = list(serializers.deserialize(self.serializer_name, serial_str))[0]
+        with mock.patch('django.db.models.Model') as mock_model:
+            deserial_obj.save(force_insert=False)
+            mock_model.save_base.assert_called_with(deserial_obj.object, raw=True, using=None, force_insert=False)
+
 
 class SerializersTransactionTestBase(object):