Real fix paths The given paths do not match any files on RectorConfig…

…Builder (#5561)

* Real fix paths The given paths do not match any files on RectorConfigBuilder

* assert

* fix

src/Configuration/RectorConfigBuilder.php

@@ -124,7 +124,11 @@ public function __invoke(RectorConfig $rectorConfig): void
         $uniqueSets = array_unique($this->sets);
 
         $rectorConfig->sets($uniqueSets);
-        $rectorConfig->paths($this->paths);
+
+        if ($this->paths !== []) {
+            $rectorConfig->paths($this->paths);
+        }
+
         $rectorConfig->skip($this->skip);
         $rectorConfig->rules($this->rules);