Summary

This pull request fixes an issue where a route with a server function loader that throws `notFound` would crash during Hot Module Replacement (HMR). The change ensures that 'notFound' is treated similarly to 'error' during invalidation, allowing routes to re-load correctly.

Changes

Impact Areas

Files Changed

• packages/router-core/src/router.ts
• packages/react-router/tests/router.test.tsx