From 771424cbf0d266d95543bb4bc84a058570d777ac Mon Sep 17 00:00:00 2001
From: David Baker <dave@matrix.org>
Date: Wed, 1 Jun 2022 10:11:02 +0100
Subject: [PATCH] Expand comment

---
 src/room/usePTT.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/room/usePTT.ts b/src/room/usePTT.ts
index cc42140..3446ff6 100644
--- a/src/room/usePTT.ts
+++ b/src/room/usePTT.ts
@@ -31,7 +31,11 @@ function getActiveSpeakerFeed(
   const activeSpeakerFeeds = feeds.filter((f) => !f.isAudioMuted());
 
   // make sure the feeds are in a deterministic order so every client picks
-  // the same one as the active speaker
+  // the same one as the active speaker. The custom sort function sorts
+  // by user ID, so needs a collator of some kind to compare. We make a
+  // specific one to help ensure every client sorts the same way
+  // although of course user IDs shouldn't contain accented characters etc.
+  // anyway).
   const collator = new Intl.Collator("en", {
     sensitivity: "variant",
     usage: "sort",