HMR doesn't work correctly with TailwindCSS 2 (JIT mode), Vite 2, Vue 2

[hivokas]

HMR with TailwindCSS 2 in JIT mode, Vite 2, Vue 2 doesn't work correctly (styles are not updated).

Demo:

https://user-images.githubusercontent.com/22997803/138445184-fccf6ec9-54c1-4c9c-95ce-539a567bb343.mp4

Reproduction repo:

• Vue 2 (doesn't work) - https://github.com/hivokas/hmr-issue-tailwind-2-jit/tree/vue-2
• Vue 3 (works) - https://github.com/hivokas/hmr-issue-tailwind-2-jit/tree/vue-3

P.S. appreciate your work on vite-plugin-vue2!

[ash668]

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