Index: trunk/core/admin_templates/js/catalog.js
===================================================================
diff -u -r5022 -r5024
--- trunk/core/admin_templates/js/catalog.js	(.../catalog.js)	(revision 5022)
+++ trunk/core/admin_templates/js/catalog.js	(.../catalog.js)	(revision 5024)
@@ -69,6 +69,11 @@
 		// sets new category to kernel_form in case if item tab
 		// loads faster and will check if it's category is same
 		// as parent category of categories list
+		
+		if (get_hidden_field('m_cat_id') == $cat_id) {
+			// it's the same category, then don't reload category list
+			return true;
+		}
 		set_hidden_field('m_cat_id', $cat_id);
 	}