Fix deletion not deleting relevant actions.

lib/pleroma/activity.ex

@@ -15,11 +15,17 @@ def get_by_ap_id(ap_id) do
       where: fragment("(?)->>'id' = ?", activity.data, ^to_string(ap_id)))
   end
 
+  # Wrong name, only returns create activities
   def all_by_object_ap_id_q(ap_id) do
     from activity in Activity,
       where: fragment("(?)->'object'->>'id' = ?", activity.data, ^to_string(ap_id))
   end
 
+  def all_non_create_by_object_ap_id_q(ap_id) do
+    from activity in Activity,
+      where: fragment("(?)->>'object' = ?", activity.data, ^to_string(ap_id))
+  end
+
   def all_by_object_ap_id(ap_id) do
     Repo.all(all_by_object_ap_id_q(ap_id))
   end

lib/pleroma/web/ostatus/handlers/delete_handler.ex

@@ -7,6 +7,7 @@ def handle_delete(entry, doc \\ nil) do
     with id <- XML.string_from_xpath("//id", entry),
          object when not is_nil(object) <- Object.get_by_ap_id(id) do
       Repo.delete(object)
+      Repo.delete_all(Activity.all_non_create_by_object_ap_id_q(id))
       Repo.delete_all(Activity.all_by_object_ap_id_q(id))
       nil
     end

test/web/ostatus/incoming_documents/delete_handling_test.exs

@@ -9,12 +9,17 @@ defmodule Pleroma.Web.OStatus.DeleteHandlingTest do
     test "it removes the mentioned activity" do
       note = insert(:note_activity)
       second_note = insert(:note_activity)
+      user = insert(:user)
+      object = Object.get_by_ap_id(note.data["object"]["id"])
+
+      {:ok, like, object} = Pleroma.Web.ActivityPub.ActivityPub.like(user, object)
 
       incoming = File.read!("test/fixtures/delete.xml")
       |> String.replace("tag:mastodon.sdf.org,2017-06-10:objectId=310513:objectType=Status", note.data["object"]["id"])
       {:ok, []} = OStatus.handle_incoming(incoming)
 
       refute Repo.get(Activity, note.id)
+      refute Repo.get(Activity, like.id)
       refute Object.get_by_ap_id(note.data["object"]["id"])
       assert Repo.get(Activity, second_note.id)
       assert Object.get_by_ap_id(second_note.data["object"]["id"])