No one reads the detached head advice

.github/workflows/macos.yml

@@ -15,6 +15,9 @@ jobs:
         run: |
           sudo /usr/libexec/ApplicationFirewall/socketfilterfw --setglobalstate off
           sudo /usr/libexec/ApplicationFirewall/socketfilterfw --getglobalstate
+      - name: git config
+        run: |
+          git config --global advice.detachedHead 0
       - uses: actions/checkout@v2
         with:
           path: src

.github/workflows/mingw.yml

@@ -28,6 +28,7 @@ jobs:
         run: |
           git config --system core.autocrlf false
           git config --system core.eol lf
+          git config --system advice.detachedHead 0
       - uses: actions/checkout@v2
         with:
           path: src

.github/workflows/mjit.yml

@@ -19,6 +19,9 @@ jobs:
           set -x
           sudo apt-get update -q || :
           sudo apt-get install --no-install-recommends -q -y build-essential libssl-dev libyaml-dev libreadline6-dev zlib1g-dev libncurses5-dev libffi-dev libgdbm-dev bison autoconf ruby
+      - name: git config
+        run: |
+          git config --global advice.detachedHead 0
       - uses: actions/checkout@v2
         with:
           path: src

.github/workflows/ubuntu.yml

@@ -33,6 +33,9 @@ jobs:
           set -x
           sudo apt-get update -q || :
           sudo apt-get install --no-install-recommends -q -y build-essential libssl-dev libyaml-dev libreadline6-dev zlib1g-dev libncurses5-dev libffi-dev libgdbm-dev bison autoconf ruby
+      - name: git config
+        run: |
+          git config --global advice.detachedHead 0
       - uses: actions/checkout@v2
         with:
           path: src

.github/workflows/windows.yml

@@ -33,6 +33,9 @@ jobs:
       - name: Install libraries with chocolatey
         run: |
           choco install --no-progress openssl winflexbison3
+      - name: git config
+        run: |
+          git config --system advice.detachedHead 0
       - uses: actions/checkout@v2
         with:
           path: src