message: don't filter out custom tags anymore
diff: @@ -224,9 +224,9 @@ class RoomListStore extends Store {
  }
  }
  - // ignore tags we don't know about
  + // ignore any m. tag names we don't know about
  tagNames = tagNames.filter((t) => {
  - return lists[t] !== undefined;
  + return !t.startsWith('m.') || lists[t] !== undefined;
  });
  if (tagNames.length) {
  