Title Field Converts Parentheses to Angle Brackets After MySQL Reserved Word

[projectnoontide]

Parentheses convert to right/left angle brackets in the Title field when using a recently added reserved word from MySQL (8.0.3).

Steps to reproduce the behavior:

1. Add the following Title text: Reserved Word (System) at End Followed by Parentheses, e.g. System (Hi)
2. Output title text to html.

This behavior only occurs when the reserved word (System) is at the end, followed by parentheses.

Env:

• EE Version: 7.1.6
• PHP Version: 8.1.6
• MySQL Version: 8.0.31
• OS: macOS Catalina, 10.15.7
• Web Server: nginx

MySQL Note: SYSTEM (R); added in 8.0.3 (reserved)
https://dev.mysql.com/doc/mysqld-version-reference/en/keywords-8-0.html

[intoeetive]

In certain cases parentheses are being converted into angle brackets as part of XSS cleanup.

We realize this is not ideal solution though, so will keep this issue open

[projectnoontide]

I'll work around it for now, thanks.