Fix tracebacks occurring in GetOriginalFileTests

Review Request #10175 — Created Sept. 24, 2018 and submitted — Latest diff uploaded

Information

Review Board
release-4.0.x
ca9686b...

Reviewers

There were tracebacks occurring in the GetOriginalFileTests due to the
user not being present on the django.http.HttpRequest that was used
in logging, causing an AttributeError. We now provide an anonymous
user on the request.

Ran unit tests and did not see any tracebacks.