Tooltip show wrong information after about 2000 chars when using custom classRegex

[KermanX]

What version of VS Code are you using?

v1.18.1

What version of Tailwind CSS IntelliSense are you using?

v0.9.13

What version of Tailwind CSS are you using?

v3.3.3

What package manager are you using?

pnpm

What operating system are you using?

Windows

Tailwind config

/** @type {import('tailwindcss').Config} */
export default {
  content: [],
  theme: {
    extend: {},
  },
  plugins: [],
}

VS Code settings

{
  "editor.quickSuggestions": {
    "strings": "on"
  },
  "tailwindCSS.experimental.classRegex": [
    ["_.\\$cls`([\\s\\S]*?)`", "(\\S+)"]
  ]
}

Reproduction URL

https://github.com/KermanX/tailwindcss-intellisense-repro

Describe your issue

The char num 2000 sounds like it is the same with #837.
However, unlike #837, autocompletion is still working after 2000 chars.