ContentNode.MultipleObjectsReturned: get() returned more than one ContentNode -- it returned 2!

[sentry-io]

Sentry Issue: H2O-Z

ContentNode.MultipleObjectsReturned: get() returned more than one ContentNode -- it returned 2!
(1 additional frame(s) were not displayed)
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  File "django/core/handlers/base.py", line 181, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "django/utils/decorators.py", line 130, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "main/views.py", line 204, in wrapper
    temp_obj = get_object_or_404(
  File "django/shortcuts.py", line 76, in get_object_or_404
    return queryset.get(*args, **kwargs)
  File "django/db/models/query.py", line 439, in get
    raise self.model.MultipleObjectsReturned(

[lizadaly]

Reproducible from going to /casebooks/5713-criminal-advocacy/resources/3.1.1-illinois-v-wardlow/annotate/ on prod

[lizadaly]

This issue reoccurs frequently but unclear what the user impact is.