example bedfile has unexpected extra column with "JUN::JUNB"

[jwokaty]

When I download the bedfile associated with the following data (it's the example bedfile; I use it for most of the examples in bedbaser), although"bed_compliance": "bed4+0", and "non_compliant_columns": 0,, I see the following in the first few lines:

chr1	1000896	1000906	-1.000000e+11	JUN::JUNB
chr1	1066881	1066891	-1.000000e+11	JUN::JUNB
chr1	1208146	1208156	-1.000000e+11	JUN::JUNB
chr1	1218006	1218016	-1.000000e+11	JUN::JUNB
chr1	1318385	1318395	-1.000000e+11	JUN::JUNB

I think this must be an error processing because I expect 4 standard bedfile columns and no nonstandard columns from the metadata. Below is the metadata that I see for comparison.

{
  "name": "ENCFF445QIM",
  "genome_alias": "hg38",
  "genome_digest": "Ba88PY52_qeifhJrgUXyin6UITdXNsg3",
  "bed_compliance": "bed4+0",
  "data_format": "ucsc_bed",
  "compliant_columns": 4,
  "non_compliant_columns": 0,
  "header": null,
  "id": "2511272115fa7786e8bc8808b6c3d7de",
  "description": null,
  "submission_date": "2026-04-11T01:36:50.629086Z",
  "last_update_date": "2026-04-14T18:48:03.926378Z",
  "is_universe": false,
  "license_id": "DUO:0000042",
  "annotation": {
    "species_name": "Homo sapiens",
    "species_id": "9606",
    "genotype": "",
    "phenotype": "",
    "description": "",
    "cell_type": null,
    "cell_line": "Caki2",
    "tissue": "kidney, epithelium",
    "library_source": null,
    "assay": "DNase-seq",
    "antibody": null,
    "target": null,
    "treatment": null,
    "global_sample_id": [
      "encode:ENCFF445QIM"
    ],
    "global_experiment_id": [
      "encode:ENCSR825NXL"
    ],
    "original_file_name": "ENCFF445QIM.bed.gz"
  },
  "processed": false,
  "stats": null,
  "plots": null,
  "files": null,
  "universe_metadata": null,
  "raw_metadata": null,
  "bedsets": null
}

Let me know if I should file another place. Thanks for your help.