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-rw-r--r--tests/model_formsets/models.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/tests/model_formsets/models.py b/tests/model_formsets/models.py
index df6a68792b..7b7337fd52 100644
--- a/tests/model_formsets/models.py
+++ b/tests/model_formsets/models.py
@@ -37,6 +37,10 @@ class Book(models.Model):
def __str__(self):
return self.title
+ def clean(self):
+ # Ensure author is always accessible in clean method
+ assert self.author.name is not None
+
@python_2_unicode_compatible
class BookWithCustomPK(models.Model):