Override Metadata does not clear when unchecked

Override Metadata does not clear when unchecked
Clearing the Override Metadata checkbox does not remove the metadata changes that were made.

Environment:

  • API Version: v2
  • Release: Boston?
  • Release version: 15.1.3
  • Platform: Salesforce

Brief Summary of the Defect/Issue:

I was experimenting with metadata override on a STRING field in a table but was unable to accomplish what was desired. When I unchecked the Override Metadata checkbox, I noted that artifacts from my effort remained attached to the field (Custom Label, Display Type). In the XML, I found this:

Expected Result:
The override-associated field attributes should clear when the checkbox is unchecked.