Fixed #34012 -- Made QuerySet.order_by() apply transforms on related fields for models with Meta.ordering.

This makes QuerySet.order_by() no longer ignore trailing transforms for
models with Meta.ordering. As a consequence, FieldError is raised in
such cases for non-existent fields.

Thanks to Klaas van Schelven for the report and Mariusz Felisiak for the
review and advice.

tests/ordering/tests.py

@@ -1,6 +1,7 @@
 from datetime import datetime
 from operator import attrgetter
 
+from django.core.exceptions import FieldError
 from django.db.models import (
     CharField,
     Count,
@@ -91,6 +92,18 @@ class OrderingTests(TestCase):
             attrgetter("headline"),
         )
 
+    def test_default_ordering_override_unknown_field(self):
+        """
+        Attempts to override default ordering on related models with an unknown
+        field should result in an error.
+        """
+        msg = (
+            "Cannot resolve keyword 'unknown_field' into field. Choices are: "
+            "article, author, editor, editor_id, id, name"
+        )
+        with self.assertRaisesMessage(FieldError, msg):
+            list(Article.objects.order_by("author__unknown_field"))
+
     def test_order_by_override(self):
         """
         Only the last order_by has any effect (since they each override any