Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

Author: komer3

e2e/test/lb-with-ipv6-backends/chainsaw-test.yaml

@@ -57,6 +57,10 @@ spec:
 
               addresses=$(echo "$nodes" | jq -r '.data[].address')
 
+              if [[ -z "$addresses" ]]; then
+                echo "NO_BACKEND_ADDRESSES"
+              fi
+
               for address in $addresses; do
                 if [[ $address =~ ^\[(.*)\]:([0-9]+)$ ]]; then
                   host="${BASH_REMATCH[1]}"
@@ -72,6 +76,7 @@ spec:
               done
             check:
               ($error): ~
+              (contains($stdout, 'NO_BACKEND_ADDRESSES')): false
               (contains($stdout, 'is NOT IPv6')): false
     - name: Fetch loadbalancer ip and check both pods reachable
       try: