Message is rendering wrong after replacing text with sed like message with `<` character

Description

When I typed test as a message and s/s/</ as a next message, the message renders as te (edited). After pressing arrow up to edit, it shows Editing message: te and in the input there is te<t.

Steps to reproduce

1. Write a test message
2. Replace a substring with a < character using sed like syntax
3. See the message being rendered wrong

What is the current bug behavior?

The message is rendered as te

What is the expected correct behavior?

Message should be rendered as te<t

Relevant logs and/or screenshots

https://streamable.com/5xomhq

Possible fixes

(If you can, link to the line of code that might be responsible for the problem)

System/Matrix Information

• Distribution / Platform: Archlinux
• Qt Version: 5.15.2
• NeoChat version: 1.2
• Quotient version: 0.6.6
• Matrix server: wvffle.net