try

Author: daejunpark

.github/workflows/test.yml

@@ -26,6 +26,11 @@ jobs:
         with:
           path: erc4626-tests
 
+      - name: Get current commit SHA
+        id: current-commit
+        working-directory: erc4626-tests
+        run: echo "sha=$(git rev-parse HEAD)" >> $GITHUB_OUTPUT
+
       - name: Checkout external project
         uses: actions/checkout@v4
         with:
@@ -44,7 +49,7 @@ jobs:
           git remote -v show
           git branch --all
           git remote update
-          git checkout local/main
+          git checkout ${{ steps.current-commit.outputs.sha }}
 
       - name: Install Foundry
         uses: foundry-rs/foundry-toolchain@v1