DuplicateItemError in cms

[patrickshan]

Hi there,

Whe I try to use 'edit a draft' link on "Unit Settings" page, I got an error from cms. From the front-end page, it says "The studio servers encountered an error" while from the back end I got these error logs from cms:

2013-07-22 04:28:59,114 ERROR 11536 [django.request] base.py:215 - Internal Server Error: /create_draft
Traceback (most recent call last):
File "/opt/edx/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 111, in get_response
response = callback(request, _callback_args, *_callback_kwargs)
File "/opt/edx/local/lib/python2.7/site-packages/django/contrib/auth/decorators.py", line 20, in _wrapped_view
return view_func(request, _args, *_kwargs)
File "/opt/wwc/edx-platform/common/djangoapps/util/json_request.py", line 25, in expect_json_with_cloned_request
return view_function(request, _args, *_kwargs)
File "/opt/wwc/edx-platform/cms/djangoapps/contentstore/views/component.py", line 256, in create_draft
modulestore().clone_item(location, location)
File "/opt/wwc/edx-platform/common/lib/xmodule/xmodule/modulestore/mongo/base.py", line 623, in clone_item
raise DuplicateItemError(location)
DuplicateItemError: i4x://test.com/5701/vertical/031fea56f8c849f292f4e129fbd695d8

I used edx-configuration to install the edx-platform. After installation, I changed the EMAIL_BACKEND from smtp to SES while the user was created with smtp mail backend. I am not sure if this is the cause for this issue.

Any idea?

[singingwolfboy]

Is this still an issue with the latest version of the codebase?