Messages based on Commands are not fed into stream

Hey Dag,

I am trying to use Elmish Stream in the Safe Confplanner and I am banging my head for the last couple of hours because it is not working as (I) expected.

In the Confplanner I need to work with commands (so no mksimple) and I have a couple of situations where I need to create messages from commands within the update function. For this I am using the elmish `Cmd.OfFunc.result MyMsg` et al functions. It seems that those message are never fed into the message stream (it is somehow circumvented and the messages go directly into update). Is this expected behaviour? I can create a minimal repro but I wanted check first if this is the way it is supposed to be.