From 59ccd3520c1753e06fb2cc79d0e20ca696ae9737 Mon Sep 17 00:00:00 2001
From: Bernhard Frauendienst <github@nospam.obeliks.de>
Date: Mon, 15 Jul 2024 16:27:18 +0200
Subject: [PATCH] Add demo action for actions/checkout #1782

https://github.com/actions/checkout/issues/1782
---
 .github/workflows/demo.yaml | 59 +++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 .github/workflows/demo.yaml

diff --git a/.github/workflows/demo.yaml b/.github/workflows/demo.yaml
new file mode 100644
index 0000000..b93d65c
--- /dev/null
+++ b/.github/workflows/demo.yaml
@@ -0,0 +1,59 @@
+name: Demo for non-standard ref names issue
+
+on:
+  workflow_dispatch:
+
+jobs:
+  push_ref:
+    name: Create non-standard ref name
+    runs-on: ubuntu-latest
+    outputs:
+      ref: ${{ steps.push.outputs.ref }}
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Create dummy commit, and push as non-standard ref
+        id: push
+        run: |
+          echo "Dummy" > dummy
+          git add dummy
+          git commit -m 'Dummy commit (run id ${{ github.run_id }})'
+          git push origin HEAD:$REF
+          echo "ref=$REF" >> $GITHUB_OUTPUTS
+        env:
+          REF=refs/deploy-bot/${{ github.run_id }}/merge
+
+  checkout_old_working:
+    name: Checkout non-standard ref name (working @4.1.6)
+    runs-on: ubuntu-latest
+    needs: push_ref
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4.1.6
+        with:
+          ref: ${{ needs.push_ref.outputs.ref }}
+
+      - name: Show latest commit
+        run: |
+          git log -1
+          cat dummy
+
+  checkout_new_failing:
+    name: Checkout non-standard ref name (failing @ > 4.1.6)
+    runs-on: ubuntu-latest
+    needs: push_ref
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ needs.push_ref.outputs.ref }}
+
+      - name: Show latest commit
+        run: |
+          git log -1
+          cat dummy
+