From 1d08f839762c7321df5e1a0c01df66403a20af7d Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Mon, 18 Jan 2016 12:29:14 +0000
Subject: [PATCH] Only clone if needed

---
 src/Composer/Repository/ComposerRepository.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Composer/Repository/ComposerRepository.php b/src/Composer/Repository/ComposerRepository.php
index 1af0de7df..1994876c5 100644
--- a/src/Composer/Repository/ComposerRepository.php
+++ b/src/Composer/Repository/ComposerRepository.php
@@ -90,7 +90,7 @@ class ComposerRepository extends ArrayRepository implements ConfigurableReposito
         $this->io = $io;
         $this->cache = new Cache($io, $config->get('cache-repo-dir').'/'.preg_replace('{[^a-z0-9.]}i', '-', $this->url), 'a-z0-9.$');
         $this->loader = new ArrayLoader();
-        if ($rfs) {
+        if ($rfs && $this->options) {
             $rfs = clone $rfs;
             $rfs->setOptions($this->options);
         }