From 3ecbec4ae6e04919869b155bd99aada49736b374 Mon Sep 17 00:00:00 2001
From: Wojciech Sznapka <wojciech@sznapka.pl>
Date: Mon, 28 Nov 2011 18:47:47 +0100
Subject: [PATCH] Changed session key checking

---
 Type/CaptchaType.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Type/CaptchaType.php b/Type/CaptchaType.php
index 0e720fd..bf24419 100755
--- a/Type/CaptchaType.php
+++ b/Type/CaptchaType.php
@@ -149,8 +149,8 @@ class CaptchaType extends AbstractType
 
     private function generateCaptchaValue()
     {
-        $value = $this->session->get($this->key);
-        if (null == $value || 0 == strlen($value)) {
+        if ($this->session->has($this->key)) {
+            $value = $this->session->get($this->key);
             $charset = 'abcdefhjkmnprstuvwxyz23456789';
             $chars = str_split($charset);