Fix BREAKING_CHANGE string detection in commit msg / PR body

BREAKING_CHANGE

.github/workflows/backwards_compatibility.yml

@@ -13,29 +13,43 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Print the event payload
+        run: cat "$GITHUB_EVENT_PATH"
+
       - name: Check for BREAKING_CHANGE in commit message
         id: check_commit
         run: |
-          COMMIT_MSG=$(git log --format=%B -n 1 HEAD)
-          echo "Commit message: $COMMIT_MSG"
-          if echo "$COMMIT_MSG" | grep -q "BREAKING_CHANGE"; then
+          BREAKING_CHANGE_FOUND=false
+          for COMMIT in $(git log --format=%H HEAD^..HEAD); do
+            COMMIT_MSG=$(git log --format=%B -n 1 $COMMIT)
+            echo "Commit message: $COMMIT_MSG"
+            if echo "$COMMIT_MSG" | grep -q "BREAKING_CHANGE"; then
+            BREAKING_CHANGE_FOUND=true
+              break
+            fi
+          done
+
+          if $BREAKING_CHANGE_FOUND; then
             echo "skip=true" >> $GITHUB_OUTPUT
+            echo "skip=true, 'BREAKING_CHANGE' found in commit message"
           else
             echo "skip=false" >> $GITHUB_OUTPUT
+            echo "skip=false, 'BREAKING_CHANGE' not found in commit message"
           fi
 
       - name: Check for BREAKING_CHANGE in pull request body
         id: check_pr_body
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          PR_MSG_TITLE=$(jq -r .pull_request.title "$GITHUB_EVENT_PATH")
-          PR_MSG_BODY=$(jq -r .pull_request.body "$GITHUB_EVENT_PATH")
+          PR_MSG_BODY=${{ github.event.pull_request.body }}
           echo "Pull Request body: $PR_MSG_BODY"
           if [[ "$PR_MSG_BODY" == *"BREAKING_CHANGE"* ]]; then
             echo "skip=true" >> $GITHUB_OUTPUT
+            echo "skip=true, 'BREAKING_CHANGE' found in pull request body"
           else
             echo "skip=false" >> $GITHUB_OUTPUT
+            echo "skip=false, 'BREAKING_CHANGE' not found in pull request body"
           fi
 
   build_and_test:
@@ -44,6 +58,8 @@ jobs:
     if: ${{ needs.check_commit_message.outputs.should_skip != 'true' }}
     steps:
       - run: echo "${{ needs.check_commit_message.outputs.should_skip }}"
+      - run: echo "${{ needs.check_commit_message.outputs.should_skip }}"
+      - run: echo "${{ needs.check_commit_message.outputs.should_skip }}"
 
       - uses: actions/checkout@v4
         with: