Update library PHPExcel to version 1.7.4
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@@ -22,7 +22,7 @@
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* @package PHPExcel_Style
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* @copyright Copyright (c) 2006 - 2010 PHPExcel (http://www.codeplex.com/PHPExcel)
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* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
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* @version 1.7.3c, 2010-06-01
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* @version 1.7.4, 2010-08-26
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*/
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@@ -443,7 +443,7 @@ class PHPExcel_Style_NumberFormat implements PHPExcel_IComparable
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{
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$vars = get_object_vars($this);
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foreach ($vars as $key => $value) {
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if (is_object($value)) {
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if ((is_object($value)) && ($key != '_parent')) {
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$this->$key = clone $value;
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} else {
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$this->$key = $value;
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