@Override
    public synchronized void memberJoined(DistributionManager distributionManager,
        InternalDistributedMember id) {
      // bug #44684 - this notification has been moved to a point AFTER the
      // other member has finished initializing its region

      // required-roles functionality is not implemented for partitioned regions,
      // or it would be done here
    }
Used to get membership events from our advisor to implement RegionMembershipListener
invocations. This is copied almost in whole from DistributedRegion

@since GemFire 5.7
geode-core/src/main/java/org/apache/geode/internal/cache/PartitionedRegion.java