Node-RED node that filters duplicate messages. First output will return non-duplicated values, second one will output duplicated.
Analysis will be done grouped by topic if defined. By default payload value is considered for analysis - specific key can be specified in "Msg Key Property".
Node role may be:
- Add+Deduplicate within node: analysis within given inputs of node
- Registry class: Allow addition or analysis upon a centrally managed list of values, cross nodes and based on the defined registry name
