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-rw-r--r--tests/defer/tests.py8
1 files changed, 8 insertions, 0 deletions
diff --git a/tests/defer/tests.py b/tests/defer/tests.py
index 3945b667ba..989b5c63d7 100644
--- a/tests/defer/tests.py
+++ b/tests/defer/tests.py
@@ -290,6 +290,14 @@ class TestDefer2(AssertionMixin, TestCase):
self.assertEqual(rf2.name, "new foo")
self.assertEqual(rf2.value, "new bar")
+ def test_refresh_when_one_field_deferred(self):
+ s = Secondary.objects.create()
+ PrimaryOneToOne.objects.create(name="foo", value="bar", related=s)
+ s = Secondary.objects.defer("first").get()
+ p_before = s.primary_o2o
+ s.refresh_from_db()
+ self.assertIsNot(s.primary_o2o, p_before)
+
class InvalidDeferTests(SimpleTestCase):
def test_invalid_defer(self):