toLocaleTimeString regression in v18 #46571

Version

v18.14.0

Platform

Darwin MacBook-Pro.local 22.1.0 Darwin Kernel Version 22.1.0: Sun Oct 9 20:15:09 PDT 2022; root:xnu-8792.41.9~2/RELEASE_ARM64_T6000 arm64

Subsystem

No response

What steps will reproduce the bug?

1. Run node
2. Log new Date().toLocaleTimeString('en').charCodeAt(7) to see the char code of the space
3. See the result, it's 8239

How often does it reproduce? Is there a required condition?

100% of runs

What is the expected behavior?

The code of the space here should supposably be 32, at least that's what I see when running in Chrome 109.0.5414.119 and Node v16.19.0.

What do you see instead?

The code of the space is - 8239

Additional information

This causes issues when running hydration in NextJS.