Changes to custom field sets in Epics Benefits tab record incorrect field name in Audit log

Issue Summary

Changes to custom field sets in the Epics Benefits tab record incorrect field names in the Epic's Audit logs.

'WBS Code' is displayed as the field name for the text type field regardless of the actual field name.

'Approver Status' is displayed as the field name for the dropdown type field regardless of the actual field name.

Steps to Reproduce

1. Configure a Custom Field Set in Administration → Platform → Portfolio → Case Development, name the field something unique
2. Assign the Field Set in Administration → Setup → Programs, select it for a specific Program
3. Go to an Epic in the above program → Benefits tab, modify the custom field values
4. Observe the Epic's Audit logs 

Expected Results

Audit logs should display the fields' unique names or have some other way of identifying which fields changed.

Actual Results

Audit logs show WBS Code and Approver Status for any field in the Custom Fields Set.

Workaround

Currently, there is no known workaround for this behavior. A workaround will be added here when available.