disable prefetch aliasing in development (vercel#69168)

We don't prefetch in development so the aliasing handling doesn't really
make sense. We still technically create an "auto" prefetch on
navigation, but we'd never benefit from the alias handling because we
wouldn't have prefetched any loading states.

packages/next/src/client/components/router-reducer/prefetch-cache-utils.ts

@@ -98,6 +98,7 @@ function getExistingCacheEntry(
     // but lets us arrive there quicker in the param-full case.
     const entryWithoutParams = prefetchCache.get(cacheKeyWithoutParams)
     if (
+      process.env.NODE_ENV !== 'development' &&
       url.search &&
       kind !== PrefetchKind.FULL &&
       entryWithoutParams &&
@@ -114,7 +115,7 @@ function getExistingCacheEntry(
   // We attempt a partial match by checking if there's a cache entry with the same pathname.
   // Regardless of what we find, since it doesn't correspond with the requested URL, we'll mark it "aliased".
   // This will signal to the router that it should only apply the loading state on the prefetched data.
-  if (kind !== PrefetchKind.FULL) {
+  if (process.env.NODE_ENV !== 'development' && kind !== PrefetchKind.FULL) {
     for (const cacheEntry of prefetchCache.values()) {
       if (
         cacheEntry.pathname === url.pathname &&