Github user mikezaccardo commented on the pull request:
https://github.com/apache/incubator-brooklyn/pull/1050#issuecomment-162957168
@sjcorbett I still think this addition has value because it simplifies YAML
blueprints (vs. having to add an aggregator from #1037), and it also better
handles changes in cluster size when invoking a positive resize effector on a
`DynamicCluster`. I'd like to see it merged -- maybe a name change could
assuage the concerns you raised about an empty cluster having a `false` value?
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