'comma' (\u002c) is transformed to 'full stop' (\u002e) when overwriting [specialCharacters] with empty array

[elac85]

🐞 bug report

Is this a regression?

Not sure.

Description

I want to reset the default special characters, and enable my special characters as a regex, so I overwrite the default special character array with an empty one, and add a custom pattern to the input field. In this setup, if I type 'comma' (,) in the input, it will be transformed to 'full stop' (.)

🔬 Minimal Reproduction

Stackblitz Example