cleared property
Cleared is false when your org held no such override — which is not an error, it is the honest answer to a removal that had nothing to remove.
Please note: This property should have been non-nullable! Since the specification file does not include a default value (using the "default:" property), however, the generated source code must fall back to having a nullable type. Consider adding a "default:" property in the specification file to hide this note.
Implementation
bool? cleared;