next.js

26084997 - fix: wait for webpack HMR to complete before refreshing server components

fix: wait for webpack HMR to complete before refreshing server components During HMR, the dev server sends BUILT (triggering async module.hot.apply()) before SERVER_COMPONENT_CHANGES (triggering hmrRefresh()). Previously, hmrRefresh() fired immediately without waiting for the webpack update to finish, creating a race where __webpack_require__ could be called for modules that were temporarily absent from __webpack_modules__ during the swap. This was previously masked because the resulting TypeError was caught by React's error boundary, but webpack 5.104+ added an explicit module existence check that turns this into a hard "Cannot find module" error. Fix by awaiting the pendingHotUpdateWebpack promise before calling hmrRefresh(), ensuring all webpack modules are fully in place before the RSC response tries to reference them.