TwitterAPI: fix "Follows you" being shown for the wrong user.

lib/pleroma/web/twitter_api/twitter_api_controller.ex

@@ -309,18 +309,18 @@ def update_most_recent_notification(%{assigns: %{user: user}} = conn, %{"id" =>
   end
 
   def followers(conn, params) do
-    with {:ok, user} <- TwitterAPI.get_user(conn.assigns.user, params),
+    with {:ok, user} <- TwitterAPI.get_user(conn.assigns[:user], params),
          {:ok, followers} <- User.get_followers(user) do
-      render(conn, UserView, "index.json", %{users: followers, for: user})
+      render(conn, UserView, "index.json", %{users: followers, for: conn.assigns[:user]})
     else
       _e -> bad_request_reply(conn, "Can't get followers")
     end
   end
 
   def friends(conn, params) do
-    with {:ok, user} <- TwitterAPI.get_user(conn.assigns.user, params),
+    with {:ok, user} <- TwitterAPI.get_user(conn.assigns[:user], params),
          {:ok, friends} <- User.get_friends(user) do
-      render(conn, UserView, "index.json", %{users: friends, for: user})
+      render(conn, UserView, "index.json", %{users: friends, for: conn.assigns[:user]})
     else
       _e -> bad_request_reply(conn, "Can't get friends")
     end

test/web/twitter_api/twitter_api_controller_test.exs

@@ -668,6 +668,7 @@ test "it returns a given user's friends with user_id", %{conn: conn} do
 
       conn =
         conn
+        |> assign(:user, user)
         |> get("/api/statuses/friends", %{"user_id" => user.id})
 
       assert MapSet.equal?(
@@ -689,6 +690,7 @@ test "it returns a given user's friends with screen_name", %{conn: conn} do
 
       conn =
         conn
+        |> assign(:user, user)
         |> get("/api/statuses/friends", %{"screen_name" => user.nickname})
 
       assert MapSet.equal?(