v6 clean: false still deletes my files that were checkedout from other directory.

[Mr-Saikiran]

      - name: Checkout Support files
        uses: actions/checkout@v6
        with:
            repository: '${{ github.repository_owner }}/thatorg'
            token: ${{ steps.app-token.outputs.token }}
            ref: 'v1'
            sparse-checkout: |
              docker-ui/Dockerfile
              nginx/nginx.conf

      - name: setup nginx.conf
        run: |
          sed -i "s|UI_NAME|${{ github.event.repository.name }}|g" nginx/nginx.conf
          mv nginx/nginx.conf ./nginx.conf

      - uses: actions/checkout@v6
        name: Checkout Source Code
        with:
          fetch-depth: 0
          ref: ${{ github.ref_name }}
          clean: false 

And from the GITHUB Action Step Output I see its deleting the workspace files which were previous pulled into the runner

Run actions/checkout@v6
  with:
    fetch-depth: 0
    ref: main
    clean: false
    repository: thisorg/thisrepo
    token: ***
    ssh-strict: true
    ssh-user: git
    persist-credentials: true
    sparse-checkout-cone-mode: true
    fetch-tags: false
    show-progress: true
    lfs: false
    submodules: false
    set-safe-directory: true
Syncing repository: thisorg/thisrepo
Getting Git version info
  Working directory is '/home/runner/work/thisrepo/thisrepo'
  /usr/bin/git version
  git version 2.52.0
Temporarily overriding HOME='/home/runner/work/_temp/4392b1eb-81d2-4a6a-b469-6ef11459c8c8' before making global git config changes
Adding repository directory to the temporary git global config as a safe directory
/usr/bin/git config --global --add safe.directory /home/runner/work/thisrepo/thisrepo
/usr/bin/git config --local --get remote.origin.url
https://github.com/thisorg/thatrepo
Deleting the contents of '/home/runner/work/thisrepo/thisrepo'
Initializing the repository
Disabling automatic garbage collection
Setting up auth
Fetching the repository
Determining the checkout info
/usr/bin/git sparse-checkout disable
/usr/bin/git config --local --unset-all extensions.worktreeConfig
Checking out the ref
/usr/bin/git log -1 --format=%H
1074b85d5c5e3a06b9d4db67902254f4cd08b697

Any workaround is appreciated until this is fixed.