Running the hello world example in a loop seems to be causing problems to the controller

[fgiorgetti]

Describe the bug
Running the hello-world example, using the same namespace names and resource
names in a loop, seems to be causing problems to the controller.
The logs show that it is trying to update the listener, but failing.

More details can be found through:

https://gist.github.com/fgiorgetti/bb44cf8d91f76177256cc800899e49c2

Snippet:

time=2025-02-05T21:33:36.783Z level=INFO msg="updating listener token-west-testing/backend..."
time=2025-02-05T21:33:39.994Z level=INFO msg="[ControllerError] Error while handling Pod token-east-testing/backend-8465dfcd48-zfjfp: Error looking up connector for token-east-testing/backend"
time=2025-02-05T21:33:40.008Z level=INFO msg="[ControllerError] Error while handling Pod token-east-testing/backend-8465dfcd48-zfjfp: Error looking up connector for token-east-testing/backend"
time=2025-02-05T21:33:40.021Z level=INFO msg="[ControllerError] Error while handling Pod token-east-testing/backend-8465dfcd48-zfjfp: Error looking up connector for token-east-testing/backend"
time=2025-02-05T21:33:40.034Z level=INFO msg="[ControllerError] Error while handling Pod token-east-testing/backend-8465dfcd48-zfjfp: Error looking up connector for token-east-testing/backend"
time=2025-02-05T21:33:40.041Z level=INFO msg="[ControllerError] Error while handling Pod token-east-testing/backend-8465dfcd48-zfjfp: Error looking up connector for token-east-testing/backend"
time=2025-02-05T21:33:40.404Z level=INFO msg="[ControllerError] Error while handling Pod token-east-testing/backend-8465dfcd48-zfjfp: Error looking up connector for token-east-testing/backend"

How To Reproduce
Run the hello-world example (automated) in a loop.

Expected behavior
Site state should reflect current resources, but I see:

NAMESPACE            NAME         STATUS   SITES IN NETWORK   MESSAGE
token-east-testing   token-east   Ready    2                  OK
token-west-testing   token-west   Ready    2                  OK

NAMESPACE            NAME              STATUS   REMOTE SITE   MESSAGE
token-east-testing   link-1738790792   Ready    token-west    OK

NAMESPACE            NAME                          ROUTING KEY    PORT   HOST      STATUS    HAS MATCHING CONNECTOR   MESSAGE
token-west-testing   listener.skupper.io/backend   backend-8080   8080   backend   Pending                            No matching connectors

NAMESPACE            NAME                           ROUTING KEY    PORT   HOST   SELECTOR      STATUS   HAS MATCHING LISTENER   MESSAGE
token-east-testing   connector.skupper.io/backend   backend-8080   8080          app=backend   Ready    true                    OK

Environment details

• quay.io/skupper/controller:v2-dev
• quay.io/skupper/skupper-router:main
• quay.io/skupper/kube-adaptor:v2-dev
• Kubernetes (minikube)