That's not my understanding.  You still can use the Standard Deduction plus the loss calculated on 4684.  The difference is there is a $100 deductible instead of $500 - and you must deduct 10% of AGI from the loss.  4684 handles this correctly.  But Schedule A does not.  You have to force feed the Standard Deduction on line 16.  Then Schedule A simply adds the forced amount to the loss (from 4684) AND all the other entries on Schedule A.  Program booboo.