Allow SHA reuse, can be expected behaviour

action.yml

@@ -138,7 +138,7 @@ runs:
       id: digest_old
       shell: bash
       run: |
-        DIGEST=$((docker manifest inspect ${{ steps.vars.outputs.tags }} || echo) | jq '.manifests[0].digest')
+        DIGEST=$(docker manifest inspect ${{ steps.vars.outputs.tags }} || echo | jq '.manifests[0].digest')
         echo "digest=${DIGEST}" >> $GITHUB_OUTPUT
 
     # If a build is required, then checkout, login, build and push!
@@ -188,17 +188,6 @@ runs:
       if: steps.build.outputs.triggered == 'true' && steps.digest_new.outputs.digest == steps.digest_old.outputs.digest
       shell: bash
       run: |
-        echo "SHA collision!"
+        echo "SHA repeat!"
         echo "  New: ${{ steps.digest_new.outputs.digest }}"
         echo "  Old: ${{ steps.digest_old.outputs.digest }}"
-        exit 1
-
-    # Summary/debugging
-    - name: Summary
-      if: always()
-      shell: bash
-      run: |
-        echo "inputs: ${{ fromJSON(inputs) }}"
-        echo "digest_new: ${{ steps.digest_new.outputs.digest }}"
-        echo "digest_old: ${{ steps.digest_old.outputs.digest }}"
-        echo "triggered: ${{ steps.diff.outputs.triggered }}"