Zeroing COMMENT field?

I have some FLAC files that beets converted to MP3s for me. The original FLAC files had a comment field with info like this.
EAC V1.0 beta 2, Secure Mode, Test & Copy, AccurateRip, FLAC -8

This was saved into a ID3 field that ffprobe reports as:
COMMENT : EAC V1.0 beta 2, Secure Mode, Test & Copy, AccurateRip, FLAC -8

I’m trying to get the Zero plugin to remove these. I added this to my config

zero:
    fields: comments
    comments: [EAC, Exact Audio Copy, LAME, 'ripped by', http, LameXP]
    update_database: true

This is not zeroing the field in question. I tried adding COMMENT to the field list

zero:
    fields: comments COMMENT
    comments: [EAC, Exact Audio Copy, LAME, 'ripped by', http, LameXP]
    COMMENT: [EAC, Exact Audio Copy, LAME, 'ripped by', http, LameXP]
    update_database: true

Now Zero reports that COMMENT is not a field. Which it isn’t in the beets field list.

So what am I doing wrong? How can zero these comments?

Is there a way to do a dry run with scrub? I’m curious what other fields I would lose if I scrub the files instead.

Hi! You shouldn’t need to add COMMENT; only beets field names are relevant here. I’m not really sure what’s going wrong… maybe a good way to start debugging would be to remove the conditions for the comments field and just unconditionally zero it and see if that works? Verbose mode might help too.