Unable to clear artifacts:reports:coverage_report in inherited job

Summary

An external job defines artifacts:reports:junit and artifacts:reports:coverage_report. I overwrite the job locally, but I am not able to remove the artifacts:reports:coverage_report definition while keeping artifacts:reports:junit. The attempts either remove both artifacts, keep both of them, or make the pipeline crash with a very generic message.

Probably related to #383079 (closed).

Steps to reproduce

External job:

# .gitlab-ci.import.yml
test-included-artifacts:
  stage: test
  script:
    - touch report.xml
  artifacts:
    paths:
      - report.xml
    reports:
      junit: report.xml
      coverage_report:
        coverage_format: cobertura
        path: report.xml

All configs below are in .gitlab-ci.yml and start with include:local: .gitlab-ci.import.yml.

1. Following configs collect `paths`, `junit` and `cobertura_report`:

a.

test-included-artifacts:
  artifacts:
    paths:
      - report.xml

b.

test-included-artifacts:
  artifacts:
    reports:
      junit: report.xml

c.

test-included-artifacts:
  artifacts:
    paths:
      - report.xml
    reports:
      junit: report.xml

d.

test-included-artifacts:
  artifacts: null
  artifacts:
    paths:
      - report.xml
    reports:
      junit: report.xml

e.

test-included-artifacts:
  artifacts:
    reports: null
  artifacts:
    paths:
      - report.xml
    reports:
      junit: report.xml

f.

test-included-artifacts:
  artifacts:
    reports: null
  artifacts:
    paths:
      - report.xml

2. Following config collects `paths` only:

test-included-artifacts:
  artifacts:
    paths:
      - report.xml
    reports: null

3. Following config collects `junit` and `coverage_report`:

test-included-artifacts:
  artifacts:
    paths:
      - report.xml
    reports: null
  artifacts:
    reports:
      junit: report.xml

4. Following config collects `report.xml` for `junit` and `report2.xml` for `coverage_format`. Note that `paths` are not collected!

test-included-artifacts:
  after_script:
    - touch report2.xml
  artifacts:
    reports:
      coverage_report:
        coverage_format: cobertura
        path: report2.xml

5. Following config collects nothing:

test-included-artifacts:
  artifacts:
    paths:
      - report.xml
  artifacts:
    reports: null

6. [for completeness] Following config crashes, see #383079 (closed):

test-included-artifacts:
  artifacts:
    reports:
      coverage_report: null

Example Project

What is the current bug behavior?

None of the provided configurations can disable coverage_report and at the same time enable (explicitly redefined) junit. It feels to me that at least one of them should.

What is the expected correct behavior?

A configuration that disables a predefined artifacts:reports:coverage_report and enables a (predefined/redefined/newly-defined) artifacts:reports:coverage_report.

Relevant logs and/or screenshots

Output of checks

Results of GitLab environment info

GitLab Enterprise Edition 15.4.2-ee

Results of GitLab application Check

Possible fixes

Possibly related to #383079 (closed).