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Changes between Initial Version and Version 1 of Ticket #28000

-              initial
+              v1
 If i consider to modify a column (ChaField) to add a default value as follow:
+{{{
 from django.db import models
 class PersonModel(models.Model):
     nickname = models.CharField(default="noname", max_length=100, null=False)
+}}}
 makemigration insists on creating a new migration for this change. However, the migration on MYSQL shows:
+{{{
 BEGIN;
 ALTER TABLE "core_personmodel" ALTER "nickname" SET DEFAULT 'noname';
 ALTER TABLE "core_personmodel" ALTER "nickname" DROP DEFAULT;
 COMMIT;
+}}}
 I think there is a mistake at line 735 in django/db/backends/base/schema.py
 {{{