[2.0.x] Fixed #28750 -- Allowed models to define Meta.manager_inheritance_from_future for backwards compatibility.

Refs 631f4ab06112aca5bd6a57b81159048f936050bf.

Backport of cbe334918a0a80762249706a15b699714b5dc828 from master

1 files changed, 15 insertions, 0 deletions

diff --git a/tests/model_meta/test_manager_inheritance_from_future.py b/tests/model_meta/test_manager_inheritance_from_future.py
new file mode 100644
index 0000000000..2359489283
--- /dev/null
+++ b/tests/model_meta/test_manager_inheritance_from_future.py
@@ -0,0 +1,15 @@
+from django.db import models
+from django.test import SimpleTestCase
+from django.test.utils import isolate_apps
+
+
+@isolate_apps('model_meta')
+class TestManagerInheritanceFromFuture(SimpleTestCase):
+    def test_defined(self):
+        """
+        Meta.manager_inheritance_from_future can be defined for backwards
+        compatibility with Django 1.11.
+        """
+        class FuturisticModel(models.Model):
+            class Meta:
+                manager_inheritance_from_future = True  # No error raised.