*: fix stage incorrectly being inserted instead of appended

[BeryJu]

Details

REPLACE ME

---

Checklist

• Local tests pass (ak test authentik/)
• The code has been formatted (make lint-fix)

If an API change has been made

• The API schema has been updated (make gen-build)

If changes to the frontend have been made

• The code has been formatted (make web)

If applicable

• The documentation has been updated
• The documentation has been formatted (make website)

[netlify]

✅ Deploy Preview for authentik-storybook canceled.

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🔨 Latest commit	d042589
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[netlify]

✅ Deploy Preview for authentik-docs canceled.

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🔨 Latest commit	d042589
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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.71%. Comparing base (2c802ca) to head (d042589).
Report is 11 commits behind head on main.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #13304   +/-   ##
=======================================
  Coverage   92.71%   92.71%           
=======================================
  Files         793      793           
  Lines       40268    40268           
=======================================
+ Hits        37335    37336    +1     
+ Misses       2933     2932    -1     

Flag	Coverage Δ
e2e	48.06% <50.00%> (-0.01%)	⬇️
integration	24.11% <0.00%> (ø)
unit	90.44% <50.00%> (ø)

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[github-actions]

authentik PR Installation instructions

Instructions for docker-compose

Add the following block to your .env file:

AUTHENTIK_IMAGE=ghcr.io/goauthentik/dev-server
AUTHENTIK_TAG=gh-d04258997b2acac42dd6b6d622d2cac69487888a
AUTHENTIK_OUTPOSTS__CONTAINER_IMAGE_BASE=ghcr.io/goauthentik/dev-%(type)s:gh-%(build_hash)s

Afterwards, run the upgrade commands from the latest release notes.

Instructions for Kubernetes

Add the following block to your values.yml file:

authentik:
    outposts:
        container_image_base: ghcr.io/goauthentik/dev-%(type)s:gh-%(build_hash)s
global:
    image:
        repository: ghcr.io/goauthentik/dev-server
        tag: gh-d04258997b2acac42dd6b6d622d2cac69487888a

Afterwards, run the upgrade commands from the latest release notes.

[BeryJu]

/cherry-pick version-2025.2