v2: remove fetcher back-compat layer

remix-run · Jul 20, 2023 · 9369212 · 9369212
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diff --git a/.changeset/v2-remove-fetcher-compat.md b/.changeset/v2-remove-fetcher-compat.md
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+---
+"@remix-run/react": major
+---
+
+Remove back-compat layer for `useFetcher`/`useFetchers`.  This includes a few small breaking changes:
+* `fetcher.type` has been removed since it can be derived from other available information
+* "Submission" fields have been flattened from `fetcher.submission` down onto the root `fetcher` object, and prefixed with `form` in some cases (`fetcher.submission.action` => `fetcher.formAction`)
+* `<fetcher.Form method="get">` is now more accurately categorized as `state:"loading"` instead of `state:"submitting"` to better align with the underlying GET request
diff --git a/integration/fetcher-state-test.ts b/integration/fetcher-state-test.ts