option sell can have the negative cost acquisition. The system does not pick up while importing the 1099B and it neither allows manual correction as it expects at least 0 in that field. I think its a bug and needs to be resolved as it it very much possible to have the
Box 1e - Cost or other basis = (-100) and
Box 1d - Proceeds = 0
Gain = +100
System, after importing, asks to review these items.
