Do not include notifications from blocked users when with_muted is set

This is not what with_muted is for per documentation and it was agreed
on irc that this behavior doesn't make sense.

lib/pleroma/notification.ex

@@ -34,7 +34,6 @@ def changeset(%Notification{} = notification, attrs) do
   end
 
   def for_user_query(user, opts \\ []) do
-    query =
     Notification
     |> where(user_id: ^user.id)
     |> where(
@@ -54,22 +53,31 @@ def for_user_query(user, opts \\ []) do
         )
     )
     |> preload([n, a, o], activity: {a, object: o})
+    |> exclude_muted(user, opts)
+    |> exclude_blocked(user)
+  end
 
-    if opts[:with_muted] do
+  defp exclude_blocked(query, user) do
     query
-    else
-      where(query, [n, a], a.actor not in ^user.info.muted_notifications)
     |> where([n, a], a.actor not in ^user.info.blocks)
     |> where(
       [n, a],
       fragment("substring(? from '.*://([^/]*)')", a.actor) not in ^user.info.domain_blocks
     )
+  end
+
+  defp exclude_muted(query, _, %{with_muted: true}) do
+    query
+  end
+
+  defp exclude_muted(query, user, _opts) do
+    query
+    |> where([n, a], a.actor not in ^user.info.muted_notifications)
     |> join(:left, [n, a], tm in Pleroma.ThreadMute,
       on: tm.user_id == ^user.id and tm.context == fragment("?->>'context'", a.data)
     )
     |> where([n, a, o, tm], is_nil(tm.user_id))
   end
-  end
 
   def for_user(user, opts \\ %{}) do
     user

test/notification_test.exs

@@ -680,7 +680,7 @@ test "it doesn't return notifications for muted thread" do
       assert Notification.for_user(user) == []
     end
 
-    test "it returns notifications for muted user with notifications and with_muted parameter" do
+    test "it returns notifications from a muted user when with_muted is set" do
       user = insert(:user)
       muted = insert(:user)
       {:ok, user} = User.mute(user, muted)
@@ -690,27 +690,27 @@ test "it returns notifications for muted user with notifications and with_muted
       assert length(Notification.for_user(user, %{with_muted: true})) == 1
     end
 
-    test "it returns notifications for blocked user and with_muted parameter" do
+    test "it doesn't return notifications from a blocked user when with_muted is set" do
       user = insert(:user)
       blocked = insert(:user)
       {:ok, user} = User.block(user, blocked)
 
       {:ok, _activity} = CommonAPI.post(blocked, %{"status" => "hey @#{user.nickname}"})
 
-      assert length(Notification.for_user(user, %{with_muted: true})) == 1
+      assert length(Notification.for_user(user, %{with_muted: true})) == 0
     end
 
-    test "it returns notificatitons for blocked domain and with_muted parameter" do
+    test "it doesn't return notifications from a domain-blocked user when with_muted is set" do
       user = insert(:user)
       blocked = insert(:user, ap_id: "http://some-domain.com")
       {:ok, user} = User.block_domain(user, "some-domain.com")
 
       {:ok, _activity} = CommonAPI.post(blocked, %{"status" => "hey @#{user.nickname}"})
 
-      assert length(Notification.for_user(user, %{with_muted: true})) == 1
+      assert length(Notification.for_user(user, %{with_muted: true})) == 0
     end
 
-    test "it returns notifications for muted thread with_muted parameter" do
+    test "it returns notifications from muted threads when with_muted is set" do
       user = insert(:user)
       another_user = insert(:user)