@Override
	public void dataTypeChanged(DataType dt, boolean isAutoChange) {
		super.dataTypeChanged(dt, isAutoChange);
		if (dt == viewComposite) {
			// Set dataTypeChanged which will trigger changeCallback when transaction fully comitted
			dataTypeChanged = true;
		}
	}
Refresh all datatypes which originate from the originalDTM.
This methods is intended for use following an undo/redo of the originalDTM only
and will purge the ID mappings for any datatypes which no longer exist or become
orphaned.
@return true if a dependency change is detected, else false
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/compositeeditor/CompositeViewerDataTypeManager.java