diff --git a/tests/queries/test_qs_combinators.py b/tests/queries/test_qs_combinators.py
index a8b3df8844..e7740b987c 100644
--- a/tests/queries/test_qs_combinators.py
+++ b/tests/queries/test_qs_combinators.py
@@ -5,7 +5,7 @@
 from django.test import TestCase, skipIfDBFeature, skipUnlessDBFeature
 from django.test.utils import CaptureQueriesContext
 
-from .models import Author, Celebrity, ExtraInfo, Number, ReservedName
+from .models import Author, Celebrity, ExtraInfo, Number, Report, ReservedName
 
 
 @skipUnlessDBFeature("supports_select_union")
@@ -125,23 +125,22 @@ def test_union_nested(self):
 
     def test_union_with_different_models(self):
         expected_result = {
-            "Angel Di Maria",
-            "Lionel Messi",
-            "Emiliano Martinez",
-            "Gabriel Marques",
-            "Jorge Luis Borges",
-            "Umberto Eco",
+            "Angel",
+            "Lionel",
+            "Emiliano",
+            "Demetrio",
+            "Daniel",
+            "Javier",
         }
-        Celebrity.objects.create(name="Angel Di Maria")
-        Celebrity.objects.create(name="Lionel Messi")
-        Celebrity.objects.create(name="Emiliano Martinez")
-        Celebrity.objects.create(name="Gabriel Marques")
-        e1 = ExtraInfo.objects.create(value=7, info="e1")
-        Author.objects.create(name="Gabriel Marques", num=1, extra=e1)
-        Author.objects.create(name="Jorge Luis Borges", num=2, extra=e1)
-        Author.objects.create(name="Umberto Eco", num=3, extra=e1)
+        Celebrity.objects.create(name="Angel")
+        Celebrity.objects.create(name="Lionel")
+        Celebrity.objects.create(name="Emiliano")
+        Celebrity.objects.create(name="Demetrio")
+        Report.objects.create(name="Demetrio")
+        Report.objects.create(name="Daniel")
+        Report.objects.create(name="Javier")
         qs1 = Celebrity.objects.values(alias=F("name"))
-        qs2 = Author.objects.values(alias_author=F("name"))
+        qs2 = Report.objects.values(alias_author=F("name"))
         qs_union = qs1.union(qs2).values("name")
         self.assertCountEqual((e["name"] for e in qs_union), expected_result)
         qs_union = qs1.union(qs2).all()
@@ -488,13 +487,6 @@ def test_count_union_with_select_related(self):
         qs = Author.objects.select_related("extra").order_by()
         self.assertEqual(qs.union(qs).count(), 1)
 
-    def test_count_union_with_select_related_projected(self):
-        e1 = ExtraInfo.objects.create(value=1, info="e1")
-        a1 = Author.objects.create(name="a1", num=1, extra=e1)
-        qs = Author.objects.select_related("extra").values("pk", "name", "extra__value")
-        self.assertEqual(len(qs.union(qs)), 1)
-        self.assertEqual(qs.union(qs).first(), {"pk": a1.id, 'name': 'a1', 'extra__value': 1})
-
     @skipUnlessDBFeature("supports_select_difference")
     def test_count_difference(self):
         qs1 = Number.objects.filter(num__lt=10)
@@ -507,6 +499,16 @@ def test_count_intersection(self):
         qs2 = Number.objects.filter(num__lte=5)
         self.assertEqual(qs1.intersection(qs2).count(), 1)
 
+    @skipUnlessDBFeature(
+        "supports_slicing_ordering_in_compound"
+    )
+    def test_count_union_with_select_related_projected(self):
+        e1 = ExtraInfo.objects.create(value=1, info="e1")
+        a1 = Author.objects.create(name="a1", num=1, extra=e1)
+        qs = Author.objects.select_related("extra").values("pk", "name", "extra__value")
+        self.assertEqual(len(qs.union(qs)), 1)
+        self.assertEqual(qs.union(qs).first(), {"pk": a1.id, 'name': 'a1', 'extra__value': 1})
+
     def test_exists_union(self):
         qs1 = Number.objects.filter(num__gte=5)
         qs2 = Number.objects.filter(num__lte=5)