The ports plugin's `post-certs-update` trigger was rewriting every `https:443:*` mapping from the app's `http:80:*` mappings, silently overwriting any user-defined mapping such as `https:443:443` used by apps that terminate TLS inside the container. The trigger now skips the rewrite when an `https:443:*` mapping already exists, keeping the default behavior only when the app has no explicit HTTPS mapping configured.
Closes#8619.
cecd07d914