change detection

Author: AA-Turner

.github/workflows/reusable-context.yml

@@ -68,11 +68,13 @@ jobs:
           }}
 
     - run: git remote -vvv
+    - run: git -P branch -v
     - run: echo ${{ github.ref }}
     - run: echo ${{ github.repository }}
     - run: echo ${{ github.repository }}
     - run: echo ${{ github.event.pull_request.head.sha }}
     - run: echo ${{ env.GITHUB_HEAD_REF }}
+    - run: echo $GITHUB_HEAD_REF
 
     # Adapted from https://github.com/actions/checkout/issues/520#issuecomment-1167205721
     - name: Fetch commits to get branch diff
@@ -96,6 +98,7 @@ jobs:
         commits: ${{ github.event.pull_request.commits }}
         refspec_base: '+${{ github.event.pull_request.base.sha }}:remotes/origin/${{ github.event.pull_request.base.ref }}'
         refspec_pr: '+${{ github.event.pull_request.head.sha }}:remotes/origin/${{ github.event.pull_request.head.ref }}'
+    - run: git -P branch -v
 
     # We only want to run tests on PRs when related files are changed,
     # or when someone triggers a manual workflow run.