@Override
public IItemStack updateTag(IData tagUpdate) {
if (tag == null) {
if (stack.getTagCompound() == null) {
return withTag(tagUpdate);
}
tag = NBTConverter.from(stack.getTagCompound(), true);
}
IData updated = tag.update(tagUpdate);
return withTag(updated);
}
@Override
public ILiquidStack withTag(IData data) {
FluidStack result = new FluidStack(stack.fluidID, stack.amount);
result.tag = (NBTTagCompound) NBTConverter.from(data);
return new MCLiquidStack(result, data.immutable());
}