Make user keys on usage.

lib/pleroma/web/federator/federator.ex

@@ -1,5 +1,6 @@
 defmodule Pleroma.Web.Federator do
   alias Pleroma.User
+  alias Pleroma.Web.WebFinger
   require Logger
 
   @websub Application.get_env(:pleroma, :websub)
@@ -10,6 +11,7 @@ def handle(:publish, activity) do
       Logger.debug("Sending #{activity.data["id"]} out via websub")
       Pleroma.Web.Websub.publish(Pleroma.Web.OStatus.feed_path(actor), actor, activity)
 
+      {:ok, actor} = WebFinger.ensure_keys_present(actor)
       Logger.debug("Sending #{activity.data["id"]} out via salmon")
       Pleroma.Web.Salmon.publish(actor, activity)
     end

lib/pleroma/web/web_finger/web_finger.ex

@@ -47,6 +47,7 @@ def represent_user(user) do
     |> XmlBuilder.to_doc
   end
 
+  # This seems a better fit in Salmon
   def ensure_keys_present(user) do
     info = user.info || %{}
     if info["keys"] do