manage.py migrate is broken

[sebastian-philipp]

File "manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/home/ralf/proj/askbot-devel/.tox/py3.6/lib/python3.6/site-packages/django/core/management/__init__.py", line 381, in execute_from_command_line
utility.execute()
File "/home/ralf/proj/askbot-devel/.tox/py3.6/lib/python3.6/site-packages/django/core/management/__init__.py", line 375, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/ralf/proj/askbot-devel/.tox/py3.6/lib/python3.6/site-packages/django/core/management/base.py", line 323, in run_from_argv
self.execute(*args, **cmd_options)
File "/home/ralf/proj/askbot-devel/.tox/py3.6/lib/python3.6/site-packages/django/core/management/base.py", line 364, in execute
output = self.handle(*args, **options)
File "/home/ralf/proj/askbot-devel/.tox/py3.6/lib/python3.6/site-packages/django/core/management/base.py", line 83, in wrapped
res = handle_func(*args, **kwargs)
File "/home/ralf/proj/askbot-devel/.tox/py3.6/lib/python3.6/site-packages/django/core/management/commands/migrate.py", line 234, in handle
fake_initial=fake_initial,
File "/home/ralf/proj/askbot-devel/.tox/py3.6/lib/python3.6/site-packages/django/db/migrations/executor.py", line 117, in migrate
state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
File "/home/ralf/proj/askbot-devel/.tox/py3.6/lib/python3.6/site-packages/django/db/migrations/executor.py", line 147, in _migrate_all_forwards
state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
File "/home/ralf/proj/askbot-devel/.tox/py3.6/lib/python3.6/site-packages/django/db/migrations/executor.py", line 245, in apply_migration
state = migration.apply(state, schema_editor)
File "/home/ralf/proj/askbot-devel/.tox/py3.6/lib/python3.6/site-packages/django/db/migrations/migration.py", line 124, in apply
operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
File "/home/ralf/proj/askbot-devel/.tox/py3.6/lib/python3.6/site-packages/django/db/migrations/operations/special.py", line 190, in database_forwards
self.code(from_state.apps, schema_editor)
File "/home/ralf/proj/askbot-devel/.tox/py3.6/lib/python3.6/site-packages/askbot/migrations/0014_populate_askbot_roles.py", line 21, in populate_askbot_roles
user = profile.auth_user_ptr
File "/home/ralf/proj/askbot-devel/.tox/py3.6/lib/python3.6/site-packages/django/db/models/fields/related_descriptors.py", line 178, in _get_
rel_obj = self.get_object(instance)
File "/home/ralf/proj/askbot-devel/.tox/py3.6/lib/python3.6/site-packages/django/db/models/fields/related_descriptors.py", line 293, in get_object
kwargs = {field: getattr(instance, field) for field in fields}
File "/home/ralf/proj/askbot-devel/.tox/py3.6/lib/python3.6/site-packages/django/db/models/fields/related_descriptors.py", line 293, in <dictcomp>
kwargs = {field: getattr(instance, field) for field in fields}
AttributeError: 'UserProfile' object has no attribute 'id'

[sebastian-philipp]

only when upgrading from a previous version with data