* Optimize codes.

module/custom/control.php

@@ -638,8 +638,8 @@ class custom extends control
             $this->loadModel('setting')->setItem('system.common.global.mode', $mode);
             $this->setting->setItem('system.common.global.defaultProgram', $program);
 
-            /* 只有没有关联项目集的产品和项目关联到默认项目集下. */
-            $this->loadModel('upgrade')->relationDefaultProgram($program);
+            /* Set default program for product and project with no program. */
+            $this->loadModel('upgrade')->relateDefaultProgram($program);
 
             $this->custom->disableFeaturesByMode($mode);