I can't find the option to attach a file, so I put my patch below:

Index: Hostname.php
===================================================================
--- Hostname.php    (revision 23514)
+++ Hostname.php    (working copy)
@@ -203,7 +203,7 @@
         'CH'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿœ]{1,63}$/iu'),
         'CL'  => array(1 => '/^[\x{002d}0-9a-záéíñóúü]{1,63}$/iu'),
         'CN'  => 'Hostname/Cn.php',
-        'COM' => 'Zend/Validate/Hostname/Com.php',
+        'COM' => 'Hostname/Com.php',
         'DE'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿăąāćĉčċďđĕěėęēğĝġģĥħĭĩįīıĵķĺľļłńňņŋŏőōœĸŕřŗśŝšşťţŧŭůűũųūŵŷźžż]{1,63}$/iu'),
         'DK'  => array(1 => '/^[\x{002d}0-9a-zäéöü]{1,63}$/iu'),
         'ES'  => array(1 => '/^[\x{002d}0-9a-zàáçèéíïñòóúü- ]{1,63}$/iu'),
@@ -215,7 +215,7 @@
             6 => '/^[\x{002d}0-9a-zἀ-ἇἐ-ἕἠ-ἧἰ-ἷὀ-ὅὐ-ὗὠ-ὧὰ-ώᾀ-ᾇᾐ-ᾗᾠ-ᾧᾰ-ᾴᾶᾷῂῃῄῆῇῐ-ΐῖῗῠ-ῧῲῳῴῶῷ]{1,63}$/iu'),
         'FI'  => array(1 => '/^[\x{002d}0-9a-zäåö]{1,63}$/iu'),
         'GR'  => array(1 => '/^[\x{002d}0-9a-zΆΈΉΊΌΎ-ΡΣ-ώἀ-ἕἘ-Ἕἠ-ὅὈ-Ὅὐ-ὗὙὛὝὟ-ώᾀ-ᾴᾶ-ᾼῂῃῄῆ-ῌῐ-ΐῖ-Ίῠ-Ῥῲῳῴῶ-ῼ]{1,63}$/iu'),
-        'HK'  => 'Zend/Validate/Hostname/Cn.php',
+        'HK'  => 'Hostname/Cn.php',
         'HU'  => array(1 => '/^[\x{002d}0-9a-záéíóöúüőű]{1,63}$/iu'),
         'INFO'=> array(1 => '/^[\x{002d}0-9a-zäåæéöøü]{1,63}$/iu',
             2 => '/^[\x{002d}0-9a-záéíóöúüőű]{1,63}$/iu',
@@ -227,15 +227,15 @@
             8 => '/^[\x{002d}0-9a-záéíñóúü]{1,63}$/iu'),
         'IO'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿăąāćĉčċďđĕěėęēğĝġģĥħĭĩįīıĵķĺľļłńňņŋŏőōœĸŕřŗśŝšşťţŧŭůűũųūŵŷźžż]{1,63}$/iu'),
         'IS'  => array(1 => '/^[\x{002d}0-9a-záéýúíóþæöð]{1,63}$/iu'),
-        'JP'  => 'Zend/Validate/Hostname/Jp.php',
+        'JP'  => 'Hostname/Jp.php',
         'KR'  => array(1 => '/^[\x{AC00}-\x{D7A3}]{1,17}$/iu'),
         'LI'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿœ]{1,63}$/iu'),
         'LT'  => array(1 => '/^[\x{002d}0-9ąčęėįšųūž]{1,63}$/iu'),
         'MD'  => array(1 => '/^[\x{002d}0-9ăâîşţ]{1,63}$/iu'),
         'MUSEUM' => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿāăąćċčďđēėęěğġģħīįıķĺļľłńņňŋōőœŕŗřśşšţťŧūůűųŵŷźżžǎǐǒǔ\x{01E5}\x{01E7}\x{01E9}\x{01EF}ə\x{0292}ẁẃẅỳ]{1,63}$/iu'),
-        'NET' => 'Zend/Validate/Hostname/Com.php',
+        'NET' => 'Hostname/Com.php',
         'NO'  => array(1 => '/^[\x{002d}0-9a-zàáä-éêñ-ôöøüčđńŋšŧž]{1,63}$/iu'),
-        'NU'  => 'Zend/Validate/Hostname/Com.php',
+        'NU'  => 'Hostname/Com.php',
         'ORG' => array(1 => '/^[\x{002d}0-9a-záéíñóúü]{1,63}$/iu',
             2 => '/^[\x{002d}0-9a-zóąćęłńśźż]{1,63}$/iu',
             3 => '/^[\x{002d}0-9a-záäåæéëíðóöøúüýþ]{1,63}$/iu',
@@ -286,14 +286,14 @@
         'SJ'  => array(1 => '/^[\x{002d}0-9a-zàáä-éêñ-ôöøüčđńŋšŧž]{1,63}$/iu'),
         'TH'  => array(1 => '/^[\x{002d}0-9a-z\x{0E01}-\x{0E3A}\x{0E40}-\x{0E4D}\x{0E50}-\x{0E59}]{1,63}$/iu'),
         'TM'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿāăąćĉċčďđēėęěĝġģĥħīįĵķĺļľŀłńņňŋőœŕŗřśŝşšţťŧūŭůűųŵŷźżž]{1,63}$/iu'),
-        'TW'  => 'Zend/Validate/Hostname/Cn.php',
+        'TW'  => 'Hostname/Cn.php',
         'TR'  => array(1 => '/^[\x{002d}0-9a-zğıüşöç]{1,63}$/iu'),
         'VE'  => array(1 => '/^[\x{002d}0-9a-záéíóúüñ]{1,63}$/iu'),
         'VN'  => array(1 => '/^[ÀÁÂÃÈÉÊÌÍÒÓÔÕÙÚÝàáâãèéêìíòóôõùúýĂăĐđĨĩŨũƠơƯư\x{1EA0}-\x{1EF9}]{1,63}$/iu'),
         'ایران' => array(1 => '/^[\x{0621}-\x{0624}\x{0626}-\x{063A}\x{0641}\x{0642}\x{0644}-\x{0648}\x{067E}\x{0686}\x{0698}\x{06A9}\x{06AF}\x{06CC}\x{06F0}-\x{06F9}]{1,30}$/iu'),
-        '中国' => 'Zend/Validate/Hostname/Cn.php',
-        '公司' => 'Zend/Validate/Hostname/Cn.php',
-        '网络' => 'Zend/Validate/Hostname/Cn.php'
+        '中国' => 'Hostname/Cn.php',
+        '公司' => 'Hostname/Cn.php',
+        '网络' => 'Hostname/Cn.php'
     );
 
     protected $_idnLength = array(
@@ -513,12 +513,12 @@
         }
 
         // RFC3986 3.2.2 states:
-        // 
+        //
         //     The rightmost domain label of a fully qualified domain name
-        //     in DNS may be followed by a single "." and should be if it is 
+        //     in DNS may be followed by a single "." and should be if it is
         //     necessary to distinguish between the complete domain name and
         //     some local domain.
-        //     
+        //
         // Strip trailing '.' since it is not necessary to validate a non-IP
         // hostname.
         //
@@ -565,11 +565,7 @@
                      */
                     $regexChars = array(0 => '/^[a-z0-9\x2d]{1,63}$/i');
                     if ($this->_options['idn'] &&  isset($this->_validIdns[strtoupper($this->_tld)])) {
-                        if (is_string($this->_validIdns[strtoupper($this->_tld)])) {
-                            $regexChars += include($this->_validIdns[strtoupper($this->_tld)]);
-                        } else {
-                            $regexChars += $this->_validIdns[strtoupper($this->_tld)];
-                        }
+                        $regexChars += $this->_getValidIdnRules($this->_tld);
                     }
 
                     // Check each hostname part
@@ -768,4 +764,21 @@
 
         return implode($decoded);
     }
+
+    /**
+     * Retrieve an array of IDN rules by the TLD name.
+     *
+     * @param string $tld
+     *
+     * @return array
+     */
+    protected function _getValidIdnRules($tld)
+    {
+        $tld = strtoupper($tld);
+        if (is_string($this->_validIdns[$tld])) {
+            return include dirname(__FILE__) . '/' . $this->_validIdns[$tld];
+        }
+
+        return $this->_validIdns[$tld];
+    }
 }

Fixed with GH-94

This bug says it's fixed, but I still experience the issue using ZF 1.12.0, and checking the code in trunk the patch doesn't appear to have been applied there either.

What does "Fixed with GH-94" mean?

{quote}What does "Fixed with GH-94" mean?{quote} GH == Github

https://github.com/zendframework/zf2/pull/93 (it is number 93 and not 94)

Fixed version was the next major version and not 1.12.