I repaid SSA benefits in 2018, but SSA-1099 shows box 5 as receiving what was paid back, box 3 is twice what was received, why?

Box 3 is twice the amount actually received.  Box 4 (repaid) is what was received and returned.

But box 5 shows a value equal to what was received, I would expect this to be 0 (as all was refunded).   Description shows amount paid, and an item for Deductions for work or other adjustments of the same value.  which totaled doubles the amount