Shopware 4.2.3 - Fix incorrect tax calculation if tax rules are used.

sArticles.php.patch

--- sArticles.php.orig	2014-07-17 19:30:46.000000000 +0200
+++ sArticles.php	2014-07-17 19:35:31.000000000 +0200
@@ -3345,6 +3345,9 @@
             $getArticle["sDescriptionKeywords"] = htmlspecialchars(implode(", ", array_slice(array_keys($words), 0, 20)), ENT_QUOTES, 'UTF-8', false);
         }
 
+        // Support tax rate defined by certain conditions
+        $getTaxByConditions = $this->getTaxRateByConditions($getArticle["taxID"]);
+        if ($getTaxByConditions === false) $getArticle["tax"] = (float) $getArticle["tax"]; else $getArticle["tax"] = (float) $getTaxByConditions;
 
         // Deactivate bundle displaying
         $getArticle['crossbundlelook'] = false;