From 639768c5ef6fc80a780db94df6957ffadf7b6157 Mon Sep 17 00:00:00 2001
From: myfreescalewebpage <myfreescalewebpage@free.fr>
Date: Sat, 29 Oct 2016 13:15:07 +0200
Subject: [PATCH] Fix fatal error with long tags

See issue #696
---
 src/Util/Routing.php | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/Util/Routing.php b/src/Util/Routing.php
index f578f4b..2ab2e31 100644
--- a/src/Util/Routing.php
+++ b/src/Util/Routing.php
@@ -39,8 +39,10 @@ class Routing
              $slashPosition === 40)) {
             // We may have a commit hash as our commitish.
             $hash = substr($commitishPath, 0, 40);
-            if ($repository->hasCommit($hash)) {
-                $commitish = $hash;
+            if (preg_match('/[^a-zA-Z0-9]/i', $hash) === 0) {
+                if ($repository->hasCommit($hash)) {
+                    $commitish = $hash;
+                }
             }
         }