Geo: Job artifact deleted event could not be created

Seen a few times in the last 24 hours on GitLab.com (https://log.gitlap.com/goto/c8bf075dd32d7c1e057f617dc58f06c4):

{
  "_index": "logstash-2018.04.05",
  "_type": "gitlab",
  "_id": "AWKWu9NiKRPez66BmsoA",
  "_version": 1,
  "_score": null,
  "_source": {
    "severity": "ERROR",
    "file_path": "/var/opt/gitlab/gitlab-rails/shared/artifacts/8d/de/8dded5f959e9610b7a5a99527ed27084a91b5a876259c35db3a8024168975f7e/2018_04_05/61392980/23296715/metadata.gz",
    "program": "geo.log",
    "message": "Job artifact deleted event could not be created",
    "type": "gitlab",
    "error": "Validation failed: File path can't be blank",
    "path": "/gitlab-log/sidekiq-pages-02.sv.prd.gitlab.com/sidekiq-pages-02.sv.prd.gitlab.com-20180405.gitlab.log",
    "hostname": "sidekiq-pages-02.sv.prd.gitlab.com",
    "@timestamp": "2018-04-05T16:55:07.000Z",
    "syslog_timestamp": "Apr  5 16:55:07",
    "@version": "1",
    "host": "logstash.gitlap.com",
    "job_artifact_id": 23296715,
    "time": "2018-04-05T16:55:07.390Z",
    "class": "Geo::JobArtifactDeletedEventStore"
  },
  "fields": {
    "@timestamp": [
      1522947307000
    ],
    "time": [
      1522947307390
    ]
  },
  "highlight": {
    "message": [
      "Job artifact deleted event @kibana-highlighted-field@could@/kibana-highlighted-field@ @kibana-highlighted-field@not@/kibana-highlighted-field@ @kibana-highlighted-field@be@/kibana-highlighted-field@ @kibana-highlighted-field@created@/kibana-highlighted-field@"
    ]
  },
  "sort": [
    1522947307000
  ]
}

It looks to me this is related to GitLab Pages, perhaps when the job artifact was attempted to be deleted after a deploy. Wonder if it has to do with object storage.