in main/src/main/java/org/apache/james/jdkim/tagvalue/SignatureRecordTemplate.java [39:49]
public SignatureRecordTemplate(String data) {
super(data);
validate();
Set<String> tags = getTags();
defaults.forEach((key, value) -> {
if (!tags.contains(key) && !"l".equals(key)) {
setValue(key, value.toString());
}
}
);
}