[Bug] Trying to type an emote that starts and ends with a : rarely crashes the chatting window.

[Master-64]

Describe the bug When attempting to type any emote like : red_circle : or anything like this, the chatting window will rarely crash. To be clear, this isn't referring to the part where you view the messages, but rather where you type your messages. That and all the other visual elements below that part will disappear until you refresh the browser.

To Reproduce Steps to reproduce the behavior:

1. Try to type any emote starting with and ending with a :
2. See error (rarely)

Expected behavior Chatting window doesn't crash when attempting to display potential emotes above the chatting window

Version: v2.2.3

Note: I've only personally had this glitch occur twice; it's very rare and not really feasible to reproduce on the spot.

[Cameron2920]

I can reproduce this fairly consistently after refreshing a page, and when 7TV and FFZ are enabled. Here is the error log from the console.

vendor-100a27dadfccf8c5a367.js:1 TypeError: Cannot read properties of undefined (reading 'key')
    at twitch.js:103:59537
    at Array.forEach (<anonymous>)
    at t.getMatches (twitch.js:103:59495)
    at t.getMatches (twitch.js:103:59456)
    at n.getMatches (pages.channel.components.channel-shell.components.chat-shell.components.chat-live-127e5d4bd2d9c2d94e36.js:1:398306)
    at n.<anonymous> (pages.channel.components.channel-shell.components.chat-shell.components.chat-live-127e5d4bd2d9c2d94e36.js:1:397356)
    at vi (vendor-100a27dadfccf8c5a367.js:1:855976)
    at cs (vendor-100a27dadfccf8c5a367.js:1:890939)
    at wc (vendor-100a27dadfccf8c5a367.js:1:908368)
    at t.unstable_runWithPriority (vendor-100a27dadfccf8c5a367.js:1:927839)
rs @ vendor-100a27dadfccf8c5a367.js:1
i.componentDidCatch.n.callback @ vendor-100a27dadfccf8c5a367.js:1
vi @ vendor-100a27dadfccf8c5a367.js:1
cs @ vendor-100a27dadfccf8c5a367.js:1
wc @ vendor-100a27dadfccf8c5a367.js:1
t.unstable_runWithPriority @ vendor-100a27dadfccf8c5a367.js:1
Ho @ vendor-100a27dadfccf8c5a367.js:1
bc @ vendor-100a27dadfccf8c5a367.js:1
ac @ vendor-100a27dadfccf8c5a367.js:1
(anonymous) @ vendor-100a27dadfccf8c5a367.js:1
t.unstable_runWithPriority @ vendor-100a27dadfccf8c5a367.js:1
Ho @ vendor-100a27dadfccf8c5a367.js:1
Yo @ vendor-100a27dadfccf8c5a367.js:1
Zo @ vendor-100a27dadfccf8c5a367.js:1
tc @ vendor-100a27dadfccf8c5a367.js:1
enqueueSetState @ vendor-100a27dadfccf8c5a367.js:1
w.setState @ vendor-100a27dadfccf8c5a367.js:1
n.onEditableValueUpdate @ pages.channel.components.channel-shell.components.chat-shell.components.chat-live-127e5d4bd2d9c2d94e36.js:1
(anonymous) @ features.chat.components.chat-input.components.wysiwyg-chat-input.component-aae676a5b7b233d9d55e.js:1
(anonymous) @ features.chat.components.chat-input.components.wysiwyg-chat-input.component-aae676a5b7b233d9d55e.js:1
setTimeout (async)
(anonymous) @ features.chat.components.chat-input.components.wysiwyg-chat-input.component-aae676a5b7b233d9d55e.js:1
ss @ vendor-100a27dadfccf8c5a367.js:1
kc @ vendor-100a27dadfccf8c5a367.js:1
t.unstable_runWithPriority @ vendor-100a27dadfccf8c5a367.js:1
Ho @ vendor-100a27dadfccf8c5a367.js:1
xc @ vendor-100a27dadfccf8c5a367.js:1
j @ vendor-100a27dadfccf8c5a367.js:1
Zt @ vendor-100a27dadfccf8c5a367.js:1
core-124efe8cb1401d76e99c.js:1 7:42:20 PM [ERROR] [error-boundary] [ChatInput] An unhandled exception occurred in the component hierarchy TypeError: Cannot read properties of undefined (reading 'key')
    at twitch.js:103:59537
    at Array.forEach (<anonymous>)
    at t.getMatches (twitch.js:103:59495)
    at t.getMatches (twitch.js:103:59456)
    at n.getMatches (pages.channel.components.channel-shell.components.chat-shell.components.chat-live-127e5d4bd2d9c2d94e36.js:1:398306)
    at n.<anonymous> (pages.channel.components.channel-shell.components.chat-shell.components.chat-live-127e5d4bd2d9c2d94e36.js:1:397356)
    at vi (vendor-100a27dadfccf8c5a367.js:1:855976)
    at cs (vendor-100a27dadfccf8c5a367.js:1:890939)
    at wc (vendor-100a27dadfccf8c5a367.js:1:908368)
    at t.unstable_runWithPriority (vendor-100a27dadfccf8c5a367.js:1:927839) {info: {…}}

[Cameron2920]

This issue has been bugging the heck out of me, so I've made a fix for it.

[tunacanman]

Workaround temporary fix: Open the BTTV emote menu(the one with the solid smile emoji next to the 7TV one). Scroll/skip down to the unicode emojis so that it starts loading them. Now the chat won't crash. If you don't see it, turn on "advanced emote menu" in bttv settings.