Does not mark a radio checkbox that has child checkboxes

[vityah1]

Hello

I have some problem with your excellent lib. May be you can help me with this.

bc_farm.zip

bc_farm_.pdf - blank pdf file
bc_farm.pdf - example of filled rdiocheckbox and child checkbox by adobe reader
bc_farm.json - extracted fields with values from example filled file

And now, the command insertfillpdf -j bc_farm.json -o bc_farm_filled.pdf bc_farm_.pdf does not populate the first radio flag correctly with child flags.

Can you help me fix this?

Thanks