Prepare playbook from URL does not work for imported plans

[The-Mule]

When running a an imported plan that contains Ansible playbook specified as URL, prepare phase fails claiming that the playbook does not exist.

Importing plan:

/fips-enabled:
  plan:
    import:
      url: https://.../tests/libkcapi
      name: /plans/ci/fips-enabled

Actual plan:

summary: CI test plan

execute:
  how: tmt

/fips-enabled:
  context+:
    fips: enabled
  prepare+:
    - name: Enable FIPS mode
      how: ansible
      order: 99
      playbook:
        - https://.../playbooks/enable-fips.yaml
 ...

Playbook URL is correct, the playbook is reachable. This can be proved by running the actual plan directly - it just works:

   prepare
        ...
        queued prepare task #1: Enable beaker-tasks on default-0
        ... 
        prepare task #4: Enable FIPS mode on default-0
        how: ansible
        name: Enable FIPS mode
        playbook: https://.../playbooks/enable-fips.yaml
        playbook-path: playbook-isftw5ft.yml
        ok: 1 task
        changed: 1 task
        skipped: 1 task
        ...
        summary: 4 preparations applied

On the other hand when running the importing one that imports the actual one, it does not work:

prepare
        ...
        queued prepare task #4: Enable FIPS mode on default-0
        ...
        prepare task #4: Enable FIPS mode on default-0
        how: ansible
        name: Enable FIPS mode
        playbook: https://.../playbooks/enable-fips.yaml
        playbook-path: playbook-0ldv71eq.yml
        fail: Playbook '/var/ARTIFACTS/work-fips-enabled-buildroot-disabled0niufoxa/import/plans/ci/fips-enabled-buildroot-disabled/playbook-0ldv71eq.yml' does not exist.

I believe the issue is that TMT downloads the playbook into different directory than than "/import/plans/..." directory (maybe the actual run directory, ie. "/plans/..."?