Update main.yml

.github/workflows/main.yml

@@ -10,6 +10,26 @@ jobs:
   prt_build_and_upload:
     runs-on: ubuntu-latest
     steps:
+
+      - name: Checking out PR code
+        uses: actions/checkout@v4
+        if: ${{ github.event_name == 'pull_request_target' }}
+        with:
+          # Number of commits to fetch. 0 indicates all history for all branches and tags.
+          # Default: 1
+          fetch-depth: '0'
+          # This is to get the PR code instead of the repo code
+          ref: ${{ github.event.pull_request.head.sha }}
+
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v4
+        name: Checking out main code
+        if: ${{ github.event_name == 'push' || github.event_name == 'workflow_dispatch' }}
+        with:
+          # Number of commits to fetch. 0 indicates all history for all branches and tags.
+          # Default: 1
+          fetch-depth: '0'
+
       - name: Building ... 
         run: |
           java -version