fix

cooleshow-user/user-admin/src/main/java/com/yonge/cooleshow/admin/controller/CourseGroupController.java

@@ -100,7 +100,7 @@ public class CourseGroupController extends BaseController {
         if (search.getShelvesFlag() != null && search.getShelvesFlag() ==2) {
             search.setDraftFlag(1);
             search.setShelvesFlag(null);
-        } else {
+        } else if (search.getShelvesFlag() != null){
             search.setDraftFlag(0);
         }
         return succeed(PageUtil.pageInfo(courseGroupService.selectVideoGroup(PageUtil.getPage(search), search)));