Cannot set a type:array input with a !reference

Summary

When setting an input as being a !reference, the interpolation gets weird, and the data being referenced is not available

Steps to reproduce

# catalog > templates/my_template.yml

spec:
  description: sample component
  inputs:
    a:
      type: array
---
job:
  script:
    - echo '$[[ inputs.a ]]' > my_script.sh

# project > list.yml
.my-shared-list:
  - value1
  - value2

# project > .gitlab-ci.yml
include:
  - local: /list.yml
  - components: path/to/catalog/my_template@~latest  # even though ~latest is ugly
    inputs:
      a:
       - !reference [.my-shared-list]
       - my-specific

What is the unexpected (buggy) behavior ?

The reference is detected and handled by GitLab, but never interpolated, as seen in the Full Configuration tab of the Pipeline Editor, where job has the following config:

job:
  script:
    - echo '[#<Gitlab::Ci::Config::Yaml::Tags::Reference:0xRAW_HEX_HERE @data={:tag=>"!reference", :style=>1, :seq=>[".my-shared-list"], :scalar=>nil, :map=>{}}>, my-specific]' > my_script.sh

What is the expected correct behavior?

I would expect the !reference to be interpolated as a valid array of what it means.

job:
  script:
    - echo '["value1", "value2", "my-specific"]' > my_script.sh

GitLab details

I am using GitLab 19.1.2, self managed