Issue #3010433 by NickDickinsonWilde: Node with alias of / causes edit link to...

Issue #3010433 by NickDickinsonWilde: Node with alias of / causes edit link to be example.com/edit causing a 404

src/PathProcessor.php

@@ -167,7 +167,7 @@ class PathProcessor implements InboundPathProcessorInterface, OutboundPathProces
       }
       $path = '/' . implode('/', $path_array);
       $processed_path = $this->pathProcessor->processOutbound($path, $options, $request);
-      if ($processed_path !== $path) {
+      if ($processed_path && $processed_path !== $path) {
         return $processed_path . '/' . implode('/', array_reverse($subpath));
       }
     }