[1.7.x] Fixed #22487: Optional rollback emulation for migrated apps

Conflicts:
	django/db/backends/creation.py
	django/test/runner.py
	docs/ref/settings.txt
	docs/topics/testing/advanced.txt

tests/migration_test_data_persistence/models.py

@@ -0,0 +1,5 @@
+from django.db import models
+
+
+class Book(models.Model):
+    title = models.CharField(max_length=100)