id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
36445	Value(None, output_field=JSONField()) incorrectly saves as SQL NULL in bulk_update()	Clifford Gama	Uddyan Goyal	"When using `bulk_update()` with a `Value(None, output_field=JSONField())` expression, the value is incorrectly saved as a `SQL NULL` rather than a `JSON null`. This behavior was temporarily fixed in 00c690efbc0b10f67924687f24a7b30397bf47d9 due to incomplete `for_save` propagation during expression resolution (bug in #36419), but reappears after the proper restoration of `for_save` handling in #36419.

{{{#!diff
diff --git a/tests/queries/test_bulk_update.py b/tests/queries/test_bulk_update.py
index 480fac6784..6c553421cb 100644
--- a/tests/queries/test_bulk_update.py
+++ b/tests/queries/test_bulk_update.py
@@ -3,7 +3,7 @@ from math import ceil
 
 from django.core.exceptions import FieldDoesNotExist
 from django.db import connection
-from django.db.models import F
+from django.db.models import F, Value, JSONField
 from django.db.models.functions import Coalesce, Lower
 from django.db.utils import IntegrityError
 from django.test import TestCase, override_settings, skipUnlessDBFeature
@@ -315,6 +315,15 @@ class BulkUpdateTests(TestCase):
                 sql_null_qs = JSONFieldNullable.objects.filter(json_field__isnull=True)
                 self.assertSequenceEqual(sql_null_qs, [obj])
 
+    @skipUnlessDBFeature(""supports_json_field"")
+    def test_json_field_json_null_value(self):
+        obj = JSONFieldNullable.objects.create(json_field={})
+        obj.json_field = Value(None, output_field=JSONField())
+        JSONFieldNullable.objects.bulk_update([obj], fields=[""json_field""])
+        obj.refresh_from_db()
+        json_null_qs = JSONFieldNullable.objects.filter(json_field=None)
+        self.assertSequenceEqual(json_null_qs, [obj])
+
     def test_nullable_fk_after_related_save(self):
         parent = RelatedObject.objects.create()
         child = SingleObject()
}}}"	Bug	closed	Database layer (models, ORM)	dev	Normal	wontfix		Simon Charette Thomas	Accepted	1	0	0	1	0	0