From e11b5819763ab1df4264d5321bcd680b578e866a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Th=C3=A9o=20FIDRY?= <theo.fidry@gmail.com>
Date: Tue, 21 May 2019 17:36:44 +0200
Subject: [PATCH] break infinite loop

---
 src/Symfony/Component/Intl/Locale.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Symfony/Component/Intl/Locale.php b/src/Symfony/Component/Intl/Locale.php
index 9f810235e6f85..f9b3dfb07303a 100644
--- a/src/Symfony/Component/Intl/Locale.php
+++ b/src/Symfony/Component/Intl/Locale.php
@@ -83,6 +83,10 @@ public static function getFallback($locale)
                 return null;
             }
 
+            if (0 === \count($localSubTags)) {
+                return null;
+            }
+
             array_pop($localeSubTags);
 
             $fallback = locale_compose($localeSubTags);