CI: not sure why I removed it before

.github/workflows/release.yml

@@ -25,9 +25,16 @@ jobs:
           # Fetch the latest changes
           git fetch origin main
 
-          # Check for changes in .tex, .sty, .cls, or Docker-related files
-          if git diff --name-only HEAD^ HEAD | grep -E "^(.docker/|.*\.(tex|sty|cls)$)" > /dev/null; then
-            CHANGED=1
+          # Check if there are more than one commit to compare against
+          if [ "$(git rev-list --count HEAD)" -gt 1 ]; then
+            # Ensure that there is more than 1 commit in the history
+            if git diff --name-only HEAD^ HEAD | grep -E "^(.docker/|.*\.(tex|sty|cls)$)" > /dev/null; then
+              CHANGED=1
+            fi
+          else
+            # If there's no previous commit (only 1 commit), assume no changes to the relevant files
+            echo "Only one commit or no previous commit, skipping change check."
+            CHANGED=0
           fi
 
           echo "changed=${CHANGED}" >> $GITHUB_OUTPUT