Summary

When request type is being used for e-mail, apart from "summary" and "description", it's not possible to change other fields to required. No errors are presented to UI when this occurs causing user confusion.

Steps to Reproduce

Go to request type configuration of a request type that is used as e-mail, mark a field other than "summary" / "description" as required.

Expected: An error explaining to user that no other fields than "summary" and "description" can be marked required for e-mail request-type

Actual: Nothing happens when the "save" button is pressed causing confusion

Workaround

Use a different request-type for e-mail. By design only "Summary" and "Description" can be marked as required in an e-mail request type.