fatal: You are not currently on a branch. To push the history leading to the current (detached HEAD)

I’ve already read https://github.com/actions/checkout/issues/124

I’m trying to push a commit during release but no success

fatal: You are not currently on a branch.
To push the history leading to the current (detached HEAD)
state now, use

    git push origin HEAD:<name-of-remote-branch>

python-publish.yml looks like

name: Upload Python Package

on:
  release:
    types: [published,  workflow_dispatch]

jobs:
  deploy:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2
      with:
        ref: ${{ github.ref }}
        fetch-depth: 0 # probably don't need this 
    - name: Set up Python
      uses: actions/setup-python@v2
      with:
        python-version: '3.x'
    - name: Bump package version to ${{ github.ref_name }}
      run: |
        git config user.name "GitHub Actions Bot"
        git config user.email "<>"
        pip install bump2version==1.0.1
        # Here we don't use ${{ github.ref_name }} since github action variables can't do sed/cut/slicing
        # Remove leading 'v' from the tag name
        bump2version --new-version ${GITHUB_REF_NAME#v} minor
        # must supply either patch minor or major see https://github.com/c4urself/bump2version/issues/244
        # but it's an ignored argument argument
        git show
        git push

[Shelton2020]

Bring it home

[Fleshgrinder]

I was able to get it to work with v3:

    - uses: actions/checkout@v3
      with:
        fetch-depth: 0
        ref: ${{ github.event.pull_request.head.ref }}
    - run: |
        date >generated.txt
        git config user.name github-actions
        git config user.email [e-mail]
        git add --all .
        git commit --message test
        git push

If the commit should trigger workflows things get more complicated and a personal access token (PAT) is required:

    - uses: actions/checkout@v3
      with:
        fetch-depth: 0
        ref: ${{ github.event.pull_request.head.ref }}
        token: ${{ secrets.pat }}
    - run: |
        date >generated.txt
        user=$(gh api /user)
        user_name=$(jq -r '.login' <<<"$user")
        user_email=$(jq -r ".email | \"$[e-mail]\"" <<<"$user")
        git config user.name "$user_name"
        git config user.email "$user_email"
        git add --all .
        git commit --message test
        git push
      shell: bash

Note that the fallback email address might not be correct if the user created the email address after July 18, 2017.^1

Note further that it is not possible to cancel the workflow, the only way to stop the current workflow and let it run again is via exit 1.^2