Special allowance of rental properties $25000 is more than my income, creating negative AGI.How can i elect to allow using just enough passive loss to offset the AGI to 0

Hi all, i am qualified for the special allowance of rental properties $25000 as i am a active participant to my rentals.  On form 8582, it's showing i can allowed $25000 of passive loss to offset ordinary income.  But my ordinary income is only $3k, so it's creating a negative AGI of $21K.  Negative AGI doesnt have the loss carry forwad benefit.  How can i elect to allow using just enough passive loss to offset the AGI to 0?  The system seems to default it to $25000 only and i cant override the amount.

Does that mean I am losing the $22K loss that exceeded my ordinary income, that it was used for no benefit??  This is on my 2016 fed return, do i need to amend it?  Or is the IRS smart enough to know I shouldnt need to use all $25K special allowance but $3k, so I still have $22k passive loss unallowed to carry forward to next year?