Halt when response not null.

Author: overtrue

src/StorageManager.php

@@ -61,7 +61,7 @@ public function upload(Request $request)
 
         $filename = $this->getFilename($file, $config);
 
-        $modifiedFilename = event(new Uploading($file, $filename, $config));
+        $modifiedFilename = event(new Uploading($file, $filename, $config), [], true);
 
         $this->store($file, !is_null($modifiedFilename) ? $modifiedFilename : $filename);