Program: 171256
Project: 171256
Buggy source:
public static void initModifiers(AbstractCoreItem ingredient,GameCharacter tattooBearer,InventorySlot tattooSlot){
  EnchantmentDialogue.ingredient=ingredient;
  EnchantmentDialogue.tattooBearer=tattooBearer;
  EnchantmentDialogue.tattooSlot=tattooSlot;
  if (ingredient instanceof AbstractClothing || ingredient instanceof Tattoo) {
    EnchantmentDialogue.effects=new ArrayList<>(ingredient.getEffects());
    if (tattooBearer.getTattooInSlot(tattooSlot) == ingredient) {
      EnchantmentDialogue.isEquipped=true;
      EnchantmentDialogue.isEquippedIn=tattooSlot;
      EnchantmentDialogue.isEquippedTo=tattooBearer;
    }
  }
 else {
    EnchantmentDialogue.effects=new ArrayList<>();
  }
  if (!EnchantmentDialogue.ingredient.getEnchantmentEffect().getPrimaryModifiers().contains(EnchantmentDialogue.primaryMod)) {
    EnchantmentDialogue.primaryMod=EnchantmentDialogue.ingredient.getEnchantmentEffect().getPrimaryModifiers().get(0);
  }
  if (!EnchantmentDialogue.ingredient.getEnchantmentEffect().getSecondaryModifiers(EnchantmentDialogue.primaryMod).contains(EnchantmentDialogue.secondaryMod)) {
    EnchantmentDialogue.secondaryMod=EnchantmentDialogue.ingredient.getEnchantmentEffect().getSecondaryModifiers(EnchantmentDialogue.primaryMod).get(0);
  }
  if (!EnchantmentDialogue.ingredient.getEnchantmentEffect().getPotencyModifiers(EnchantmentDialogue.primaryMod,EnchantmentDialogue.secondaryMod).contains(EnchantmentDialogue.potency)) {
    EnchantmentDialogue.potency=TFPotency.MINOR_BOOST;
  }
  if (EnchantmentDialogue.limit <= EnchantmentDialogue.ingredient.getEnchantmentEffect().getLimits(EnchantmentDialogue.primaryMod,EnchantmentDialogue.secondaryMod)) {
    EnchantmentDialogue.limit=EnchantmentDialogue.ingredient.getEnchantmentEffect().getLimits(EnchantmentDialogue.primaryMod,EnchantmentDialogue.secondaryMod);
  }
}

Fixed version (ground truth):
public static void initModifiers(AbstractCoreItem ingredient,GameCharacter tattooBearer,InventorySlot tattooSlot){
  EnchantmentDialogue.ingredient=ingredient;
  EnchantmentDialogue.tattooBearer=tattooBearer;
  EnchantmentDialogue.tattooSlot=tattooSlot;
  if (ingredient instanceof AbstractClothing || ingredient instanceof Tattoo) {
    EnchantmentDialogue.effects=new ArrayList<>(ingredient.getEffects());
    if (ingredient instanceof Tattoo && tattooBearer.getTattooInSlot(tattooSlot) == ingredient) {
      EnchantmentDialogue.isEquipped=true;
      EnchantmentDialogue.isEquippedIn=tattooSlot;
      EnchantmentDialogue.isEquippedTo=tattooBearer;
    }
  }
 else {
    EnchantmentDialogue.effects=new ArrayList<>();
  }
  if (!EnchantmentDialogue.ingredient.getEnchantmentEffect().getPrimaryModifiers().contains(EnchantmentDialogue.primaryMod)) {
    EnchantmentDialogue.primaryMod=EnchantmentDialogue.ingredient.getEnchantmentEffect().getPrimaryModifiers().get(0);
  }
  if (!EnchantmentDialogue.ingredient.getEnchantmentEffect().getSecondaryModifiers(EnchantmentDialogue.primaryMod).contains(EnchantmentDialogue.secondaryMod)) {
    EnchantmentDialogue.secondaryMod=EnchantmentDialogue.ingredient.getEnchantmentEffect().getSecondaryModifiers(EnchantmentDialogue.primaryMod).get(0);
  }
  if (!EnchantmentDialogue.ingredient.getEnchantmentEffect().getPotencyModifiers(EnchantmentDialogue.primaryMod,EnchantmentDialogue.secondaryMod).contains(EnchantmentDialogue.potency)) {
    EnchantmentDialogue.potency=TFPotency.MINOR_BOOST;
  }
  if (EnchantmentDialogue.limit <= EnchantmentDialogue.ingredient.getEnchantmentEffect().getLimits(EnchantmentDialogue.primaryMod,EnchantmentDialogue.secondaryMod)) {
    EnchantmentDialogue.limit=EnchantmentDialogue.ingredient.getEnchantmentEffect().getLimits(EnchantmentDialogue.primaryMod,EnchantmentDialogue.secondaryMod);
  }
}