Forgotten migrations in Django 2.1.6

[Michiel Holtkamp]

Unless I'm mistaken, I think models were changed from 2.1.5 to 2.1.6 but new migration files were not created.

This currently breaks our build because we check for 'forgotten' migrations, so we have to stick to 2.1.5 or change our check to exclude this migration.

Steps to reproduce

python3 -m venv venv
source venv/bin/activate
pip install django
django-admin startproject mwe
cd mwe
python manage.py makemigrations

Result

Migrations for 'auth':
  /Users/michiel/tmmmp/venv/lib/python3.6/site-packages/django/contrib/auth/migrations/0012_auto_20190211_1115.py
    - Alter field name on group

Expected result

No changes detected

Suggested fix

run 'makemigrations', commit the file and re-publish :-)

[Ewald Moitzi]

Version 1.11.19 is also affected:

Migrations for 'admin':
  /var/lib/python3.6/site-packages/django/contrib/admin/migrations/0004_auto_20190211_1249.py
    - Alter field action_flag on logentry
Migrations for 'auth':
  /var/lib/python3.6/site-packages/django/contrib/auth/migrations/0012_auto_20190211_1249.py
    - Alter field name on group
    - Alter field last_name on user

[Bruno Alla]

I noticed the same problem, but looking at the diff on GitHub, there doesn't seem to be any model change:
​https://github.com/django/django/compare/2.1.5...2.1.6

Was the wrong release published as 2.1?

[Ewald Moitzi]

Replying to Bruno Alla:

I noticed the same problem, but looking at the diff on GitHub, there doesn't seem to be any model change:
​https://github.com/django/django/compare/2.1.5...2.1.6

Was the wrong release published as 2.1.6?

Looks like it, the missing auth migration for 1.11 wants to undo a change that was made in the master branch
(​https://github.com/django/django/commit/e81955401885a93a459bcc130642b6ea5bf4ba4d#diff-49fc6cea24d46bdb27339c1aab392e32):

class Migration(migrations.Migration):

    dependencies = [
        ('auth', '0011_update_proxy_permissions'),
    ]

    operations = [
        migrations.AlterField(
            model_name='group',
            name='name',
            field=models.CharField(max_length=80, unique=True, verbose_name='name'),
        ),
        migrations.AlterField(
            model_name='user',
            name='last_name',
            field=models.CharField(blank=True, max_length=30, verbose_name='last name'),
        ),
    ]

[David Viktora]

2.0.11 is affected as well - that means all the versions released today.

Migrations for 'admin':                                                                                                                                                                            
  /home/me/.virtualenvs/cms/lib/python3.7/site-packages/django/contrib/admin/migrations/0004_auto_20190211_1228.py                                                                
    - Alter field action_flag on logentry
Migrations for 'auth':
  /home/me/.virtualenvs/cms/lib/python3.7/site-packages/django/contrib/auth/migrations/0012_auto_20190211_1228.py
    - Alter field name on group

[Tim Graham]

Consolidating with #30175.