don't check local objects

steal_emoji_policy.ex

@@ -10,8 +10,15 @@ defmodule Pleroma.Web.ActivityPub.MRF.StealEmojiPolicy do
     length(result) == 1
   end
 
+  defp local_actor(actor) do
+    host = Pleroma.Config.get([Pleroma.Web.Endpoint, :url, :host])
+    prefix = "https://" <> host <> "/"
+    String.starts_with?(actor, prefix)
+  end
+
   @impl true
-  def filter(%{"object" => %{"emoji" => foreign_emoji}} = object) do
+  def filter(%{"object" => %{"emoji" => foreign_emoji, "actor" => actor}} = object) do
+    unless local_actor(actor) do
       num_foreign_emoji = Kernel.map_size(foreign_emoji)
 
       if num_foreign_emoji > 0 do
@@ -62,6 +69,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.StealEmojiPolicy do
           Logger.debug("NO EMOJI TO LOAD")
         end
       end
+    end
 
     {:ok, object}
   end