Duplicate columns in bulk handler extension export

hi, i believe this is a bug, i will put an issue in if so.
when i do an export of extensions from bulk handler (FreePBX i see in the export the following duplicate colums
Column - Name
ay - mediaencryptionoptimistic
bq - mediaencryptionoptimistic’

I think bq is a bug and the culumn has no data

let me know what you think