Index: branches/RC/core/units/general/helpers/category_helper.php
===================================================================
diff -u -N -r11760 -r11838
--- branches/RC/core/units/general/helpers/category_helper.php	(.../category_helper.php)	(revision 11760)
+++ branches/RC/core/units/general/helpers/category_helper.php	(.../category_helper.php)	(revision 11838)
@@ -175,7 +175,8 @@
 			elseif ($category_ids) {
 				// get module by category path
 				$module_root_categories = $this->getModuleRootCategories();
-				$module_category_id = array_shift(array_intersect($category_ids, $module_root_categories));
+				$common_categories = array_intersect($category_ids, $module_root_categories);
+				$module_category_id = array_shift($common_categories); // get 1st common category
 				$module_info = $this->Application->findModule('RootCat', $module_category_id);
 			}