Fix user representation after following.

lib/pleroma/web/twitter_api/twitter_api_controller.ex

@@ -44,7 +44,7 @@ def friends_timeline(%{assigns: %{user: user}} = conn, params) do
   end
 
   def follow(%{assigns: %{user: user}} = conn, %{ "user_id" => followed_id }) do
-    { :ok, _user, follower, _activity } = TwitterAPI.follow(user, followed_id)
+    { :ok, user, follower, _activity } = TwitterAPI.follow(user, followed_id)
 
     response = follower |> UserRepresenter.to_json(%{for: user})
 

test/web/twitter_api/twitter_api_controller_test.exs

@@ -127,7 +127,7 @@ test "with credentials", %{conn: conn, user: current_user} do
 
       current_user = Repo.get(User, current_user.id)
       assert current_user.following == [User.ap_followers(followed)]
-      assert json_response(conn, 200) == UserRepresenter.to_map(followed)
+      assert json_response(conn, 200) == UserRepresenter.to_map(followed, %{for: current_user})
     end
   end
 
@@ -150,7 +150,7 @@ test "with credentials", %{conn: conn, user: current_user} do
 
       current_user = Repo.get(User, current_user.id)
       assert current_user.following == []
-      assert json_response(conn, 200) == UserRepresenter.to_map(followed)
+      assert json_response(conn, 200) == UserRepresenter.to_map(followed, %{for: current_user})
     end
   end