'#24282 - Model changes to a FK reverse side update the model
on the FK side as well.'

def test_run_python_related_assignment(self):

    def inner_method(models, schema_editor):
        Author = models.get_model('test_authors', 'Author')
        Book = models.get_model('test_books', 'Book')
        author = Author.objects.create(name='Hemingway')
        Book.objects.create(title='Old    Man    and    The    Sea', author=author)
    create_author = migrations.CreateModel('Author', [('id', models.AutoField(primary_key=True)), ('name', models.CharField(max_length=100))], options={})
    create_book = migrations.CreateModel('Book', [('id', models.AutoField(primary_key=True)), ('title', models.CharField(max_length=100)), ('author', models.ForeignKey('test_authors.Author', models.CASCADE))], options={})
    add_hometown = migrations.AddField('Author', 'hometown', models.CharField(max_length=100))
    create_old_man = migrations.RunPython(inner_method, inner_method)
    project_state = ProjectState()
    new_state = project_state.clone()
    with connection.schema_editor() as editor:
        create_author.state_forwards('test_authors', new_state)
        create_author.database_forwards('test_authors', editor, project_state, new_state)
    project_state = new_state
    new_state = new_state.clone()
    with connection.schema_editor() as editor:
        create_book.state_forwards('test_books', new_state)
        create_book.database_forwards('test_books', editor, project_state, new_state)
    project_state = new_state
    new_state = new_state.clone()
    with connection.schema_editor() as editor:
        add_hometown.state_forwards('test_authors', new_state)
        add_hometown.database_forwards('test_authors', editor, project_state, new_state)
    project_state = new_state
    new_state = new_state.clone()
    with connection.schema_editor() as editor:
        create_old_man.state_forwards('test_books', new_state)
        create_old_man.database_forwards('test_books', editor, project_state, new_state)
