Preserve additional values of message #4
Merged
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This flow doesn't work, because a new message object is created. If an input message contains additional properties, they are discarded.
![grafik](https://user-images.githubusercontent.com/1523157/83809962-a4109e80-a6b7-11ea-9b7d-fea6e5a530ee.png)
My change transfers the properties of the
input_msg
to the newmsg
object. Ifinput_msg
isnull
, the new message object just contains{ payload: value, topic: topic }
.