Issue Summary

In some cases, when sending an email to the JSM project, there is an error message in the email log and the ticket is not created: 

Mail handler throws exception: Unexpected error while running action as user 'Optional[XXXXXXXXXXXX]'

This seems to be caused by a metadata corruption on the Email Handler's Request Type in the backend.

Steps to Reproduce

1. Send an email to the JSM project's email handler address.

Expected Results

The incoming email should be processed, resulting in a new ticket.

Actual Results

An error is shown in the project's email log and the ticket is not created:

Mail handler throws exception: Unexpected error while running action as user 'Optional[XXXXXXXXXXXX]' 

Workaround

Go to the Request Type used for incoming emails, make any change to it, and save the changes. This will force the recreation of the corrupted metadata in the backend.