Pipeline status missing in commits overview when .gitlab-ci.yml has a child pipeline

Summary

Commits normally trigger a pipeline and the status of that pipeline is normally shown on the right of the commit title in the commits overview (that page where you land when clicking 'Repository' and then 'Commits'). But that pipeline status won't appear when the .gitlab-ci.yml has a child pipeline after that commit.

The pipeline status will be shown when using this .gitlab-ci.yml:

image: busybox:latest

test1:
  stage: test
  script:
    - echo "The first test"

but not when using this .gitlab-ci.yml:

image: busybox:latest

test1:
  stage: test
  script:
    - echo "The first test"
    
test2:
  stage: test
  trigger:
    strategy: depend
    include: child.yml

Steps to reproduce

Create a new project and do what I did in the example project (do the same commits).

Example Project

https://gitlab.com/knokko1/child-pipeline-demo

What is the current bug behavior?

See the image below or visit this page yourself: https://gitlab.com/knokko1/child-pipeline-demo/-/commits/master (The nice green success symbol is not shown for the third and fourth commit.)

What is the expected correct behavior?

See image below (it is photo-shopped)

Relevant logs and/or screenshots

Pipeline overview (interestingly this does show the status of all pipelines): Since the demo project is public, anyone willing to investigate can try all pages out themselves.

Output of checks

This bug happens on GitLab.com

Results of GitLab environment info

If I understand correctly, this is only relevant when using your own gitlab instance rather than gitlab.com

Results of GitLab application Check

If I understand correctly, this is only relevant when using your own gitlab instance rather than gitlab.com

Possible fixes

Sorry, I don't know how to fix this