From d8813341c3fb0026c130f2d4e153e4954906f861 Mon Sep 17 00:00:00 2001
From: Christophe Coevoet <stof@notk.org>
Date: Mon, 22 Dec 2014 12:31:34 +0100
Subject: [PATCH] Support parsing stability flags on complex constraints

Fixes #3570
---
 src/Composer/Package/Loader/RootPackageLoader.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Composer/Package/Loader/RootPackageLoader.php b/src/Composer/Package/Loader/RootPackageLoader.php
index 64880d727..250f2952f 100644
--- a/src/Composer/Package/Loader/RootPackageLoader.php
+++ b/src/Composer/Package/Loader/RootPackageLoader.php
@@ -131,7 +131,7 @@ class RootPackageLoader extends ArrayLoader
         $minimumStability = $stabilities[$minimumStability];
         foreach ($requires as $reqName => $reqVersion) {
             // parse explicit stability flags to the most unstable
-            if (preg_match('{^[^,\s]*?@('.implode('|', array_keys($stabilities)).')$}i', $reqVersion, $match)) {
+            if (preg_match('{^[^@]*?@('.implode('|', array_keys($stabilities)).')$}i', $reqVersion, $match)) {
                 $name = strtolower($reqName);
                 $stability = $stabilities[VersionParser::normalizeStability($match[1])];