Internal 500 error when viewing diff when not logged in

When I try to view this diff without being logged in I get a 500 error:

https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/868.diff

When logged in it works fine. I can't see any reason why this shouldn't be available when not logged in (the MR itself is visible), so assuming it's a bug.

Apologies if this is the wrong place for this issue - I wasn't sure where to log issues with the hosted gitlab.com instance.

Status changed to closed

Tim, thanks for reporting the issue. This the right place. I believe this is a duplicate of #1225 (closed) and #1854 (closed), so I'll close this one for now.

mentioned in merge request !872 (merged)

mentioned in merge request !14785