@Override
	public void copySetting(Settings settings, Settings destSettings) {
		String s = settings.getString(CHARSET_SETTING_NAME);
		if (s == null) {
			destSettings.clearSetting(CHARSET_SETTING_NAME);
		}
		else {
			destSettings.setString(CHARSET_SETTING_NAME, s);
		}
	}
Backward compatibility to map old MBCS (language_index, charset_index) tuples to a
simple charset_name value.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/data/CharsetSettingsDefinition.java