[#3213] Made Object.hashtags/1 work with :hashtags assoc. Adjusted tests.

lib/pleroma/config.ex

@@ -96,6 +96,8 @@ defmodule Pleroma.Config do
     end
   end
 
+  def object_embedded_hashtags?, do: !get([:instance, :improved_hashtag_timeline])
+
   def oauth_consumer_strategies, do: get([:auth, :oauth_consumer_strategies], [])
 
   def oauth_consumer_enabled?, do: oauth_consumer_strategies() != []

lib/pleroma/object.ex

@@ -384,7 +384,19 @@ defmodule Pleroma.Object do
 
   def tags(_), do: []
 
-  def hashtags(object), do: embedded_hashtags(object)
+  def hashtags(%Object{} = object) do
+    cond do
+      Config.object_embedded_hashtags?() ->
+        embedded_hashtags(object)
+
+      object.id == "pleroma:fake_object_id" ->
+        []
+
+      true ->
+        hashtag_records = Repo.preload(object, :hashtags).hashtags
+        Enum.map(hashtag_records, & &1.name)
+    end
+  end
 
   defp embedded_hashtags(%Object{data: data}) do
     object_data_hashtags(data)

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -1199,16 +1199,16 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
       |> exclude_invisible_actors(opts)
       |> exclude_visibility(opts)
 
-    if Config.get([:instance, :improved_hashtag_timeline]) do
-      query
-      |> restrict_hashtag_any(opts)
-      |> restrict_hashtag_all(opts)
-      |> restrict_hashtag_reject_any(opts)
-    else
+    if Config.object_embedded_hashtags?() do
       query
       |> restrict_tag(opts)
       |> restrict_tag_reject(opts)
       |> restrict_tag_all(opts)
+    else
+      query
+      |> restrict_hashtag_any(opts)
+      |> restrict_hashtag_all(opts)
+      |> restrict_hashtag_reject_any(opts)
     end
   end