Fixes #18896. Add tests verifying that you can get IntegrityErrors using get_or_create through relations like M2M, and it also adds a note into the documentation warning about it

1 files changed, 9 insertions, 0 deletions

diff --git a/tests/get_or_create/models.py b/tests/get_or_create/models.py
index 82905de4f8..2f21344f59 100644
--- a/tests/get_or_create/models.py
+++ b/tests/get_or_create/models.py
@@ -28,3 +28,12 @@ class ManualPrimaryKeyTest(models.Model):
 
 class Profile(models.Model):
     person = models.ForeignKey(Person, primary_key=True)
+
+
+class Tag(models.Model):
+    text = models.CharField(max_length=256, unique=True)
+
+
+class Thing(models.Model):
+    name = models.CharField(max_length=256)
+    tags = models.ManyToManyField(Tag)