17215038 닉네임/유저이름 검색시 int처리를 하는 잘못된 코드 수정

git-svn-id: http://xe-core.googlecode.com/svn/sandbox@4497 201d5d3c-b55e-5fd7-737f-ddc643e51545

modules/issuetracker/issuetracker.model.php

@@ -76,6 +76,8 @@
                         break;
                     case 'user_name' :
                     case 'nick_name' :
+                            $args->{"s_".$args->search_target} = $args->search_keyword;
+                        break;
                     case 'member_srl' :
                             $args->{"s_".$args->search_target} = (int)$args->search_keyword;
                         break;