Index: trunk/core/units/categories/categories_item.php
===================================================================
diff -u -N -r7855 -r8104
--- trunk/core/units/categories/categories_item.php	(.../categories_item.php)	(revision 7855)
+++ trunk/core/units/categories/categories_item.php	(.../categories_item.php)	(revision 8104)
@@ -149,17 +149,7 @@
 		 */
 		function IsRoot()
 		{
-			$category_id = $this->Application->GetVar($this->getPrefixSpecial().'_id');
-			if (is_numeric($category_id) && $category_id == 0 && !$this->Application->GetVar($this->getPrefixSpecial().'_PreCreate')) {
-				$sql = 'SELECT '.$this->IDField.'
-						FROM '.$this->TableName.'
-						WHERE '.$this->IDField.' = '.$category_id;
-				if ($this->Conn->GetOne($sql) === false) {
-					return true;
-				}
-			}
-
-			return false;
+			return $this->Application->RecallVar('IsRootCategory_'.$this->Application->GetVar('m_wid'));
 		}
 
 		/**