Update newNextLinkBehavior logic to match Next's

code/frameworks/nextjs/src/config/webpack.ts

@@ -34,7 +34,20 @@ const setupRuntimeConfig = (baseConfig: WebpackConfig, nextConfig: NextConfig):
     }),
   };
 
-  if (semver.gte(version, '13.0.0') || nextConfig.experimental?.newNextLinkBehavior) {
+  /**
+   * In Next12.2, the `newNextLinkBehavior` option was introduced, defaulted to
+   * falsy in the Next app (`undefined` in the config itself), and `next/link`
+   * was engineered to opt *in* to it
+   *
+   * In Next13, the `newNextLinkBehavior` option now defaults to truthy (still
+   * `undefined` in the config), and `next/link` was engineered to opt *out*
+   * of it
+   */
+  const newNextLinkBehavior = nextConfig.experimental?.newNextLinkBehavior;
+  if (
+    (semver.gte(version, '13.0.0') && newNextLinkBehavior !== false) ||
+    (semver.gte(version, '12.2.0') && newNextLinkBehavior)
+  ) {
     definePluginConfig['process.env.__NEXT_NEW_LINK_BEHAVIOR'] = true;
   }