Program: 158427
Project: 158427
Buggy source:
@Override public Token apply(Card source){
  if (target == null) {
    throw new IllegalArgumentException("String_Node_Str");
  }
  MageObject sourceObj=source;
  if (source instanceof PermanentToken) {
    sourceObj=((PermanentToken)source).getToken();
    target.setOriginalExpansionSetCode(((Token)sourceObj).getOriginalExpansionSetCode());
    target.setOriginalCardNumber(((Token)sourceObj).getOriginalCardNumber());
    target.setCopySourceCard(((PermanentToken)source).getToken().getCopySourceCard());
  }
 else   if (source instanceof PermanentCard) {
    if (((PermanentCard)source).isMorphed() || ((PermanentCard)source).isManifested()) {
      MorphAbility.setPermanentToFaceDownCreature(target);
      return target;
    }
 else {
      sourceObj=((PermanentCard)source).getCard();
      target.setOriginalExpansionSetCode(source.getExpansionSetCode());
      target.setOriginalCardNumber(source.getCardNumber());
      target.setCopySourceCard((Card)sourceObj);
    }
  }
 else {
    target.setOriginalExpansionSetCode(source.getExpansionSetCode());
    target.setOriginalCardNumber(source.getCardNumber());
    if (source instanceof Card) {
      target.setCopySourceCard(source);
    }
  }
  target.setName(sourceObj.getName());
  target.getColor(null).setColor(sourceObj.getColor(null));
  target.getManaCost().clear();
  target.getManaCost().add(sourceObj.getManaCost());
  target.getCardType().clear();
  for (  CardType type : sourceObj.getCardType()) {
    target.getCardType().add(type);
  }
  target.getSubtype().clear();
  for (  String type : sourceObj.getSubtype()) {
    target.getSubtype().add(type);
  }
  target.getSupertype().clear();
  for (  String type : sourceObj.getSupertype()) {
    target.getSupertype().add(type);
  }
  target.getAbilities().clear();
  for (  Ability ability0 : sourceObj.getAbilities()) {
    Ability ability=ability0.copy();
    ability.newId();
    ability.setSourceId(target.getId());
    target.addAbility(ability);
  }
  target.getPower().modifyBaseValue(sourceObj.getPower().getBaseValueModified());
  target.getToughness().modifyBaseValue(sourceObj.getToughness().getBaseValueModified());
  return target;
}

Fixed version (ground truth):
@Override public Token apply(Card source){
  if (target == null) {
    throw new IllegalArgumentException("String_Node_Str");
  }
  MageObject sourceObj=source;
  if (source instanceof PermanentToken) {
    sourceObj=((PermanentToken)source).getToken();
    target.setOriginalExpansionSetCode(((Token)sourceObj).getOriginalExpansionSetCode());
    target.setOriginalCardNumber(((Token)sourceObj).getOriginalCardNumber());
    target.setCopySourceCard(((PermanentToken)source).getToken().getCopySourceCard());
  }
 else   if (source instanceof PermanentCard) {
    if (((PermanentCard)source).isMorphed() || ((PermanentCard)source).isManifested()) {
      MorphAbility.setPermanentToFaceDownCreature(target);
      return target;
    }
 else {
      if (((PermanentCard)source).isTransformed() && source.getSecondCardFace() != null) {
        sourceObj=((PermanentCard)source).getSecondCardFace();
      }
 else {
        sourceObj=((PermanentCard)source).getCard();
      }
      target.setOriginalExpansionSetCode(source.getExpansionSetCode());
      target.setOriginalCardNumber(source.getCardNumber());
      target.setCopySourceCard((Card)sourceObj);
    }
  }
 else {
    target.setOriginalExpansionSetCode(source.getExpansionSetCode());
    target.setOriginalCardNumber(source.getCardNumber());
    if (source instanceof Card) {
      target.setCopySourceCard(source);
    }
  }
  target.setName(sourceObj.getName());
  target.getColor(null).setColor(sourceObj.getColor(null));
  target.getManaCost().clear();
  target.getManaCost().add(sourceObj.getManaCost());
  target.getCardType().clear();
  for (  CardType type : sourceObj.getCardType()) {
    target.getCardType().add(type);
  }
  target.getSubtype().clear();
  for (  String type : sourceObj.getSubtype()) {
    target.getSubtype().add(type);
  }
  target.getSupertype().clear();
  for (  String type : sourceObj.getSupertype()) {
    target.getSupertype().add(type);
  }
  target.getAbilities().clear();
  for (  Ability ability0 : sourceObj.getAbilities()) {
    Ability ability=ability0.copy();
    ability.newId();
    ability.setSourceId(target.getId());
    target.addAbility(ability);
  }
  target.getPower().modifyBaseValue(sourceObj.getPower().getBaseValueModified());
  target.getToughness().modifyBaseValue(sourceObj.getToughness().getBaseValueModified());
  return target;
}