Classes inside arbitrary variants are incorrectly being prefixed

[thecrypticace]

Classes inside arbitrary variants are prefixed when they shouldn't be as they're not tailwind utilities.

The utility [.foo_&]:tw-text-red-400 incorrectly generates a selector referencing .tw-foo instead of .foo

See: #8299 (comment)

Reproduction: https://play.tailwindcss.com/GCMzAzdKNY

[pandeyprashant123-coder]

I put \ in front of '.foo_&' and it is some how giving selector .foo

https://play.tailwindcss.com/LWujxXokrG

[brandonmcconnell]

@thecrypticace I built upon your example and created an example to test classes, IDs, and attributes.

It appears IDs work as expected, but both classes and attributes experience bugs when using prefixes, and when not using prefixes, only the attributes examples break:

• With prefix: https://play.tailwindcss.com/kKJt04VYW2 (classes and attributes break)
• Without prefix: https://play.tailwindcss.com/PF2YRSjHnL (only attributes break)