diff --git a/django/db/migrations/optimizer.py b/django/db/migrations/optimizer.py
index d31ab89d075..26ac88a2218 100644
--- a/django/db/migrations/optimizer.py
+++ b/django/db/migrations/optimizer.py
@@ -47,9 +47,10 @@ class MigrationOptimizer:
                 in_between = operations[i + 1:i + j + 1]
                 result = operation.reduce(other, in_between, app_label)
                 if isinstance(result, list):
-                    # Optimize! Add result, then remaining others, then return
-                    new_operations.extend(result)
+                    # Add operations optimized through, optimized operations,
+                    # and the remaining ones.
                     new_operations.extend(in_between)
+                    new_operations.extend(result)
                     new_operations.extend(operations[i + j + 2:])
                     return new_operations
                 if not result:
diff --git a/tests/migrations/test_autodetector.py b/tests/migrations/test_autodetector.py
index 1fde1ba4661..5ad32e610cd 100644
--- a/tests/migrations/test_autodetector.py
+++ b/tests/migrations/test_autodetector.py
@@ -1165,8 +1165,8 @@ class AutodetectorTests(TestCase):
         # Right number/type of migrations?
         self.assertNumberMigrations(changes, 'testapp', 1)
         self.assertOperationTypes(changes, 'testapp', 0, ["CreateModel", "CreateModel"])
-        self.assertOperationAttributes(changes, "testapp", 0, 0, name="Author")
-        self.assertOperationAttributes(changes, "testapp", 0, 1, name="Publisher")
+        self.assertOperationAttributes(changes, "testapp", 0, 0, name="Publisher")
+        self.assertOperationAttributes(changes, "testapp", 0, 1, name="Author")
         self.assertMigrationDependencies(changes, 'testapp', 0, [("otherapp", "auto_1")])
         # Right number/type of migrations?
         self.assertNumberMigrations(changes, 'otherapp', 2)