This is causing a bug when upgrading from older releases to 1.23 because
of Service's maybe-too-clever default-on-read logic.
Service depends on `Decorator()` to be called upon read, to
back-populate old saved objects which do not have `.clusterIPs[]` set.
This works on read, but the cache saves the pre-decorated type (as it is
documented)
In 1.23, this code was refactored and it seems some edge-case handling
was inadvertently removed (I have not confirmed exactly what happened).
Test by aojea
