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Fixed #29896 -- Fixed incorrect Model.save() cache relation clearing for foreign keys that use to_field.

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Regression in ee49306176.
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Tim Graham 2018-10-28 22:54:02 -04:00 • committed by GitHub
parent 5e8a07d69d
commit f77fc56c96
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3 changed files with 12 additions and 3 deletions
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6
tests/many_to_one/tests.py
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@ -666,3 +666,9 @@ class ManyToOneTests(TestCase):
self.a.reporter_id = self.r2.pk
self.a.save()
self.assertEqual(self.a.reporter, self.r2)
def test_cached_foreign_key_with_to_field_not_cleared_by_save(self):
parent = Parent.objects.create(name='a')
child = ToFieldChild.objects.create(parent=parent)
with self.assertNumQueries(0):
self.assertIs(child.parent, parent)