Subgraphs always send defaults.

[ever-null]

When a graph is used as a subgraph through components/Graph.coffee the defaults are always sent regardless of whether the parent graph has an attached socket. This may require checking socket count in the Network.sendDefaults method on the socket.to property.

Something like:

    for socket in @defaults
      continue unless socket.to.sockets.length is 1
      socket.connect()
      socket.send()
      socket.disconnect()

Or maybe a more specific socket check:

    for socket in @defaults
      continue unless socket.to.sockets.length is 1 and deepEquals(socket, socket.to.sockets[0])
      socket.connect()
      socket.send()
      socket.disconnect()

This may not be the optimal way to handle it. Other options would be to investigate whether defaults should be removed as a socket is attached to a subgraph or refreshing a network's defaults from the parent.

** The coffee syntax might not be correct, just throwing the ideas out here for now.