@SuppressWarnings("unchecked")
	private T getExistingOriginalComposite() {
		long originalId = getCompositeID();
		if (originalId != DataTypeManager.NULL_DATATYPE_ID && originalDataTypePath != null &&
			originalDTM != null) {
			DataType dt = originalDTM.getDataType(originalId);
			if (dt instanceof Composite &&
				DataTypeUtilities.isSameKindDataType(originalComposite, dt)) {
				return (T) dt;
			}
		}
		return null;
	}
Determine if the original composite exists within the original datatype manager.
NOTE: If this method returns true, the current datatype which exists within the original
datatype manager will be returned by {@link #getOriginalComposite()}, although its name
may differ.
@return true if datatype found else false
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/compositeeditor/CompositeViewerModel.java