Handle HTTP 404 response

lib/pleroma/object/fetcher.ex

@@ -85,7 +85,7 @@ def fetch_and_contain_remote_object_from_id(id) do
          :ok <- Containment.contain_origin_from_id(id, data) do
       {:ok, data}
     else
-      {:ok, %{status: 410}} ->
+      {:ok, %{status: code}} when code in [404, 410] ->
         {:error, "Object has been deleted"}
 
       e ->

test/object/fetcher_test.exs

@@ -11,6 +11,9 @@ defmodule Pleroma.Object.FetcherTest do
       %{method: :get, url: "https://mastodon.example.org/users/userisgone"} ->
         %Tesla.Env{status: 410}
 
+      %{method: :get, url: "https://mastodon.example.org/users/userisgone404"} ->
+        %Tesla.Env{status: 404}
+
       env ->
         apply(HttpRequestMock, :request, [env])
     end)
@@ -100,6 +103,13 @@ test "handle HTTP 410 Gone response" do
                  "https://mastodon.example.org/users/userisgone"
                )
     end
+
+    test "handle HTTP 404 response" do
+      assert {:error, "Object has been deleted"} ==
+               Fetcher.fetch_and_contain_remote_object_from_id(
+                 "https://mastodon.example.org/users/userisgone404"
+               )
+    end
   end
 
   describe "pruning" do