"failed to replace output token: {batocera}" when processing fbneo roms

[Macellatore]

Paste the command

igir copy zip test clean \
--dat "./FinalBurn*.dat" \
--dat-name-regex-exclude "/headerless|OSTs/i"
--input "./FBNeo/" \
--input ".batocera/roms/" \
--input "./old_batocera_1g1r/fbneo/" \
--input-checksum-quick \
--output "./batocera_1g1r/roms/{batocera}"
--overwrite-invalid \
--no-bios \
--single \
--no-bad \
--no-debug
--no-demo
--no-beta
--no-sample
--no-program
--prefer-verified
--prefer-revision newer
--prefer-language EN,IT,JA
--prefer-region USA,WORLD,JPN,EUR
-vvv

Describe the bug

somehow when using {batocera} output token (but not limited to it, i've tried {es} too with the same results), fbneo roms are not processed, resulting in:
[17:27:05.144] TRACE: CandidateGenerator: FinalBurn Neo - Arcade Games: zwackery: failed to replace output token: {batocera}

Expected behavior

{batocera} (and {es}) should be expanded to "fbneo"

Debug log

igir_2026-07-27T17;36;08.log

DAT(s) used

FinalBurn Neo (ClrMame Pro XML, Arcade only).dat

Additional context

No response

[emmercm]

MAME and FBNeo aren't currently supported for output tokens, but I can look into adding support.