Set<InternalDistributedMember> adviseRequiresOldValueInCacheOp() {
    return adviseFilter(profile -> {
      assert profile instanceof CacheProfile;
      CacheProfile cp = (CacheProfile) profile;
      return cp.requiresOldValueInEvents && !cp.regionInitialized;
    });
  }
returns the set of all the members in the system which requires old values and are not yet
finished with initialization (including GII).

@since GemFire 5.5
geode-core/src/main/java/org/apache/geode/internal/cache/CacheDistributionAdvisor.java