edx/edx-platform — pull request #870 by VikParuchuri (2013-09-05 15:48:29+00:00)
Title: Fix nopathtoitem error

@nedbat @brianhw Short PR to fix https://edx-wiki.atlassian.net/browse/OEE-125 . When course staff made a draft and submitted a response to open ended grading using it, then the location was stored. When the staff grading module later tried to lookup the location, it encountered a NoPathtoItem error. This catches that exception.