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81a676f129
This PR fixes an issue where if you use Next.js with `--turbopack` a race condition happens because the `@tailwindcss/postcss` plugin is called twice in rapid succession. The first call sees an update and does a partial update with the new classes. Next some internal `mtimes` are updated. The second call therefore doesn't see any changes anymore because the `mtimes` are the same, therefore it's serving its stale data. Fixes: #17508 ## Test plan - Tested with the repro provided in #17508 - Added a new unit test that calls into the PostCSS plugin directly for the same change from the same JavaScript run-loop. --------- Co-authored-by: Philipp Spiess <hello@philippspiess.com>