diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index ef17f2df33..4af1b330a5 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -366,3 +366,21 @@ jobs:
         with:
           run: cargo codspeed run
           token: ${{ secrets.CODSPEED_TOKEN }}
+
+  tmp:
+    runs-on: ubuntu-latest
+    steps:
+      - name: "Checkout Branch"
+        uses: actions/checkout@v4
+        with:
+          ref: 0c030b5bf31e425cb6070db7386243eca6dbd8f1
+      - name: Check main branch
+        if: 0c030b5bf31e425cb6070db7386243eca6dbd8f1
+        run: |
+          # Fetch the main branch since a shallow checkout is used by default
+          git fetch origin main --unshallow
+          git branch --contains 0c030b5bf31e425cb6070db7386243eca6dbd8f1
+          if ! git branch --contains 0c030b5bf31e425cb6070db7386243eca6dbd8f1 | grep -E '(^|\s)main$'; then
+            echo "The specified sha is not on the main branch" >&2
+            exit 1
+          fi