uncaught MultipleObjectsReturned exception when submitting an article about janeway HOT 4 OPEN

Traceback (most recent call last):
File "/Users/stephdriver/Documents/Janeway/venv/Janeway/lib/python3.9/site-packages/django/core/handlers/exception.py", line 55, in inner
response = get_response(request)
File "/Users/stephdriver/Documents/Janeway/venv/Janeway/lib/python3.9/site-packages/django/core/handlers/base.py", line 197, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/Users/stephdriver/Documents/Janeway/venv/Janeway/lib/python3.9/site-packages/django/contrib/auth/decorators.py", line 23, in _wrapper_view
return view_func(request, *args, **kwargs)
File "/Users/stephdriver/Documents/Janeway/janeway/src/submission/decorators.py", line 33, in submission_is_enabled_wrapper
return func(request, *args, **kwargs)
File "/Users/stephdriver/Documents/Janeway/janeway/src/security/decorators.py", line 1371, in _article_is_not_submitted
return func(request, *args, **kwargs)
File "/Users/stephdriver/Documents/Janeway/janeway/src/security/decorators.py", line 728, in wrapper
return func(request, *args, **kwargs)
File "/Users/stephdriver/Documents/Janeway/janeway/src/security/decorators.py", line 66, in wrapper
return func(request, *args, **kwargs)
File "/Users/stephdriver/Documents/Janeway/janeway/src/security/decorators.py", line 1329, in submission_authorised_wrapper
return func(request, *args, **kwargs)
File "/Users/stephdriver/Documents/Janeway/janeway/src/submission/views.py", line 288, in submit_authors
logic.add_user_as_author(author, article)
File "/Users/stephdriver/Documents/Janeway/janeway/src/submission/logic.py", line 48, in add_user_as_author
user.add_account_role("author", article.journal)
File "/Users/stephdriver/Documents/Janeway/janeway/src/core/models.py", line 415, in add_account_role
role = Role.objects.get(slug=role_slug)
File "/Users/stephdriver/Documents/Janeway/venv/Janeway/lib/python3.9/site-packages/django/db/models/manager.py", line 87, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File "/Users/stephdriver/Documents/Janeway/venv/Janeway/lib/python3.9/site-packages/django/db/models/query.py", line 640, in get
raise self.model.MultipleObjectsReturned(

Exception Type: MultipleObjectsReturned at /submit/12/authors/
Exception Value: get() returned more than one Role -- it returned 2!

from janeway.

Also happening when I add self as author - so may not be about author choice. Triggered on add self button press.

With add (new) author, the popup is fine, but on submitting the popup with the new author info the error is triggered.

from janeway.

In admin, check if you have duplicate Role values for the journal you're loading an article for. We need to add a catch for this though so keep the ticket open.

from janeway.

In admin, check if you have duplicate Role values for the journal you're loading an article for.

Account I was using has multiple roles (editor, reviewer etc) in that journal, but only has each of them once. No duplicates.

from janeway.