[1.7.x] Fixed #24135 -- Made RenameModel rename many-to-many tables.

Thanks Simon and Markus for reviews.

Backport of 28db4af80a319485c0da724d692e2f8396aa57e3 from master

1 files changed, 26 insertions, 0 deletions

diff --git a/tests/migrations/test_operations.py b/tests/migrations/test_operations.py
index 435a3f2668..06a22d0f37 100644
--- a/tests/migrations/test_operations.py
+++ b/tests/migrations/test_operations.py
@@ -498,6 +498,32 @@ class OperationTests(OperationTestBase):
         pony = Pony.objects.create()
         pony.ponies.add(pony)
 
+    def test_rename_model_with_m2m(self):
+        app_label = "test_rename_model_with_m2m"
+        project_state = self.apply_operations(app_label, ProjectState(), operations=[
+            migrations.CreateModel("Rider", fields=[]),
+            migrations.CreateModel("Pony", fields=[
+                ("riders", models.ManyToManyField("Rider")),
+            ]),
+        ])
+        Pony = project_state.apps.get_model(app_label, "Pony")
+        Rider = project_state.apps.get_model(app_label, "Rider")
+        pony = Pony.objects.create()
+        rider = Rider.objects.create()
+        pony.riders.add(rider)
+
+        project_state = self.apply_operations(app_label, project_state, operations=[
+            migrations.RenameModel("Pony", "Pony2"),
+        ])
+        Pony = project_state.apps.get_model(app_label, "Pony2")
+        Rider = project_state.apps.get_model(app_label, "Rider")
+        pony = Pony.objects.create()
+        rider = Rider.objects.create()
+        pony.riders.add(rider)
+        self.assertEqual(Pony.objects.count(), 2)
+        self.assertEqual(Rider.objects.count(), 2)
+        self.assertEqual(Pony._meta.get_field('riders').rel.through.objects.count(), 2)
+
     def test_add_field(self):
         """
         Tests the AddField operation.