'WSGIRequest' object has no attribute 'user' error in enterprise code

This line of enterprise code, is resulting in the error: builtins.AttributeError: 'WSGIRequest' object has no attribute 'user'.

I believe this just needs some simple exception handling to provide the same treatment as is done for an anonymous (not logged in) user, without raising an exception.

• This should be a relatively quick fix.
• This may not lead to end user problems, because it may just be happening during 404 processing, but I'm uncertain. It definitely muddies the 404 error details and observability.