No more of ALL history

.github/workflows/run-tests.yml

@@ -33,7 +33,6 @@ jobs:
 # Don't run `git clean -ffdx` and `git reset --hard HEAD` in this step to avoid removing `mbed-os/`.
 # These will be run post checkout in the following step
          clean: false
-         fetch-depth: 0
 
 # Clean up any changes in the working index, including untracked files aside from mbed-os/
      - name: Post Checkout Cleanup
@@ -52,6 +51,9 @@ jobs:
        run: |
          echo ${{ github.event.before }} ${{ github.event.after }}
          git reflog
+         hashes=$(git reflog | head -n 2 | grep -Po "(?<= moving from )\S+")
+         echo "$hashes"
+         git diff $hashes
          if [[ -f "$MBED_OS_REF_LOCATION/mbed-os.lib" ]]; then
            if [[ -n $(diff "$MBED_OS_REF_LOCATION/mbed-os.lib" mbed-os.lib) ]]; then
              cp mbed-os.lib "$MBED_OS_REF_LOCATION"