Upload of multiple codequality reports fails with 'only one file can be sent as raw'

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Summary

Uploading multiple codequality reports in one job fails with the error only one file can be sent as raw

Steps to reproduce

• Configure a gitlab-ci job that uploads multiple codequality reports

codequality:
    stage: test
    script:
        - 'true'
    artifacts:
        reports:
            codequality:
                - 'codequality.*.json'

Example Project

https://gitlab.com/alexander.gottwald/multiple-codequality-reports

What is the current bug behavior?

The upload fails with

Uploading artifacts...
codequality.*.json: found 2 matching files and directories 
ERROR: Uploading artifacts as "codequality" to coordinator... error  error=couldn't execute POST against https://gitlab.com/api/v4/jobs/2033509533/artifacts?artifact_format=raw&artifact_type=codequality: Post "https://gitlab.com/api/v4/jobs/2033509533/artifacts?artifact_format=raw&artifact_type=codequality": only one file can be sent as raw id=2033509533 token=Phy4y3JH

What is the expected correct behavior?

Uploading multiple codequality artifacts works like it does for regular artifacts

Uploading artifacts...
**/target/spotbugs-codeclimate.xml: found 2 matching files and directories 
**/target/spotbugs-codeclimate.json: found 2 matching files and directories 
Uploading artifacts as "archive" to coordinator... 201 Created  id=54131 responseStatus=201 Created token=abc

Relevant logs and/or screenshots

Uploading artifacts...
codequality.*.json: found 2 matching files and directories 
ERROR: Uploading artifacts as "codequality" to coordinator... error  error=couldn't execute POST against https://gitlab.com/api/v4/jobs/2033509533/artifacts?artifact_format=raw&artifact_type=codequality: Post "https://gitlab.com/api/v4/jobs/2033509533/artifacts?artifact_format=raw&artifact_type=codequality": only one file can be sent as raw id=2033509533 token=Phy4y3JH

Output of checks

This bug happens on GitLab.com

Possible fixes