Fixed #19939 -- generic relations + split_exclude regression

Added a test, the issue was already fixed (likely by the patch
for #19385).

1 files changed, 6 insertions, 1 deletions

diff --git a/tests/generic_relations/tests.py b/tests/generic_relations/tests.py
index dd9dc506ca..79c7bc6184 100644
--- a/tests/generic_relations/tests.py
+++ b/tests/generic_relations/tests.py
@@ -6,7 +6,7 @@ from django.contrib.contenttypes.models import ContentType
 from django.test import TestCase
 
 from .models import (TaggedItem, ValuableTaggedItem, Comparison, Animal,
-    Vegetable, Mineral, Gecko, Rock)
+    Vegetable, Mineral, Gecko, Rock, ManualPK)
 
 
 class GenericRelationsTests(TestCase):
@@ -75,12 +75,17 @@ class GenericRelationsTests(TestCase):
             "<Animal: Lion>",
             "<Animal: Platypus>"
         ])
+        # Create another fatty tagged instance with different PK to ensure
+        # there is a content type restriction in the generated queries below.
+        mpk = ManualPK.objects.create(id=lion.pk)
+        mpk.tags.create(tag="fatty")
         self.assertQuerysetEqual(Animal.objects.filter(tags__tag='fatty'), [
             "<Animal: Platypus>"
         ])
         self.assertQuerysetEqual(Animal.objects.exclude(tags__tag='fatty'), [
             "<Animal: Lion>"
         ])
+        mpk.delete()
 
         # If you delete an object with an explicit Generic relation, the related
         # objects are deleted when the source object is deleted.