Lock Issue Types From Being Edited

Problem Definition

Some Issue Types, such as Epic and Story, indicate that they should not be edited however there is nothing which prevents that from occurring.

Use case:
Customer edited the Epic Issue Type to "New Type." If viewing an Agile Scrum Backlog, "New Type" is not displayed as Epics are Hidden from the Backlog.

Suggested Solution

Implement a "locking" feature similar to non-editable System Fields to prevent these Issue Types from being edited

Workaround

Update the modified Epic Issue Type back to "Epic" and create a New Issue Type