TypeError when reverting extra_data migration 0013_migrate_extra_data

[niklas-scholz]

Expected behaviour

We can revert all migrations from version 4.0.0 to 5.4.2.

Actual behaviour

We get a TypeError in 0013_migrate_extra_data.py

What are the steps to reproduce this issue?

1. Check out the latest version
2. Run migrations with python manage.py migrate
3. Try to revert migrations with python manage.py migrate social_django 0011_alter_id_fields

Any logs, error output, etc?

When reverting migrations with:

python manage.py migrate social_django 0011_alter_id_fields

we get the following errors:

Operations to perform:
  Target specific migration: 0011_alter_id_fields, from social_django
Running migrations:
  Rendering model states... DONE
  Unapplying social_django.0016_alter_usersocialauth_extra_data... OK
  Unapplying social_django.0015_rename_extra_data_new_usersocialauth_extra_data... OK
  Unapplying social_django.0014_remove_usersocialauth_extra_data... OK
  Unapplying social_django.0013_migrate_extra_data...Traceback (most recent call last):
  File "/app/manage.py", line 44, in <module>
    execute_from_command_line(sys.argv)
  File "/usr/local/lib/python3.10/site-packages/django/core/management/__init__.py", line 442, in execute_from_command_line
    utility.execute()
  File "/usr/local/lib/python3.10/site-packages/django/core/management/__init__.py", line 436, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/local/lib/python3.10/site-packages/django/core/management/base.py", line 413, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/usr/local/lib/python3.10/site-packages/django/core/management/base.py", line 459, in execute
    output = self.handle(*args, **options)
  File "/usr/local/lib/python3.10/site-packages/django/core/management/base.py", line 107, in wrapper
    res = handle_func(*args, **kwargs)
  File "/usr/local/lib/python3.10/site-packages/django/core/management/commands/migrate.py", line 357, in handle
    post_migrate_state = executor.migrate(
  File "/usr/local/lib/python3.10/site-packages/django/db/migrations/executor.py", line 141, in migrate
    state = self._migrate_all_backwards(plan, full_plan, fake=fake)
  File "/usr/local/lib/python3.10/site-packages/django/db/migrations/executor.py", line 219, in _migrate_all_backwards
    self.unapply_migration(states[migration], migration, fake=fake)
  File "/usr/local/lib/python3.10/site-packages/django/db/migrations/executor.py", line 282, in unapply_migration
    state = migration.unapply(state, schema_editor)
  File "/usr/local/lib/python3.10/site-packages/django/db/migrations/migration.py", line 193, in unapply
    operation.database_backwards(
  File "/usr/local/lib/python3.10/site-packages/django/db/migrations/operations/special.py", line 204, in database_backwards
    self.reverse_code(from_state.apps, schema_editor)
  File "/usr/local/lib/python3.10/site-packages/social_django/migrations/0013_migrate_extra_data.py", line 69, in migrate_json_field_backwards
    is_text_field = issubclass(
TypeError: issubclass() arg 1 must be a class

[niklas-scholz]

I added a potential fix here: #626