[1.4.x] Fixed #13794 -- Fixed to_field usage in BaseInlineFormSet.

Thanks sebastien at clarisys.fr for the report and gautier
for the patch.

Backport of 5e2c4a4bd1 from master

1 files changed, 9 insertions, 0 deletions

diff --git a/tests/regressiontests/model_formsets_regress/models.py b/tests/regressiontests/model_formsets_regress/models.py
index 189ed8072e..2dcf76edac 100644
--- a/tests/regressiontests/model_formsets_regress/models.py
+++ b/tests/regressiontests/model_formsets_regress/models.py
@@ -9,6 +9,15 @@ class UserSite(models.Model):
     user = models.ForeignKey(User, to_field="username")
     data = models.IntegerField()
 
+class UserProfile(models.Model):
+    user = models.ForeignKey(User, unique=True, to_field="username")
+    about = models.TextField()
+
+class ProfileNetwork(models.Model):
+    profile = models.ForeignKey(UserProfile, to_field="user")
+    network = models.IntegerField()
+    identifier = models.IntegerField()
+
 class Place(models.Model):
     name = models.CharField(max_length=50)