From e936f7eb095fc03d53b512d081db8aa37b2a87ad Mon Sep 17 00:00:00 2001
From: Michael Telatynski <7t3chguy@gmail.com>
Date: Sat, 21 Dec 2019 11:13:37 +0000
Subject: [PATCH] Fix room list filtering weird case sensitivity

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>
---
 src/components/views/rooms/RoomList.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/components/views/rooms/RoomList.js b/src/components/views/rooms/RoomList.js
index 152ce5105e..2fd4fef5b0 100644
--- a/src/components/views/rooms/RoomList.js
+++ b/src/components/views/rooms/RoomList.js
@@ -589,15 +589,17 @@ module.exports = createReactClass({
 
     _applySearchFilter: function(list, filter) {
         if (filter === "") return list;
-        const fuzzyFilter = utils.removeHiddenChars(filter).toLowerCase();
         const lcFilter = filter.toLowerCase();
+        // apply toLowerCase before and after removeHiddenChars because different rules get applied
+        // e.g M -> M but m -> n, yet some unicode homoglyphs come out as uppsercase, e.g 𝚮 -> H
+        const fuzzyFilter = utils.removeHiddenChars(lcFilter).toLowerCase();
         // case insensitive if room name includes filter,
         // or if starts with `#` and one of room's aliases starts with filter
         return list.filter((room) => {
             if (filter[0] === "#" && room.getAliases().some((alias) => alias.toLowerCase().startsWith(lcFilter))) {
                 return true;
             }
-            return room.name ? utils.removeHiddenChars(room.name).toLowerCase().includes(fuzzyFilter) : false;
+            return room.name && utils.removeHiddenChars(room.name.toLowerCase()).toLowerCase().includes(fuzzyFilter);
         });
     },