Getting Unhandled exception frequently.

[karan...@chromium.org]

I have been getting various exceptions on codereview for the last 4-5 days. Example- 

Sorry, an error occurred...

Unhandled exception.

Details: 'NoneType' object has no attribute 'email' [AttributeError]

Please post a message to the discussion group if you have any questions.

They generally go away after a refresh, but for https://codereview.chromium.org/1963563002/, I can't seem to Edit Issue summary even after trying multiple times.