fix(接口定义): 修复自定义字段多选成员没有值的缺陷 (#17970)

--bug=1016828 --user=王孝刚 【项目设置】模板管理-自定义字段，多选成员下拉框不显示数据
https://www.tapd.cn/55049933/s/1244631

Co-authored-by: wxg0103 <727495428@qq.com>

frontend/src/business/components/project/template/CustomFiledComponent.vue

@@ -155,15 +155,14 @@ export default {
         }
       }
     }
-    if (this.data.type.indexOf("member") < 0) {
-      return;
-    }
+    if (this.data.type === 'member' || this.data.type === 'multipleMember') {
       getProjectMemberOption((data) => {
         this.memberOptions = data;
         if (this.data.name === '责任人' && this.data.system && this.isTemplateEdit) {
           this.memberOptions.unshift({id: 'CURRENT_USER', name: '创建人', email: ''});
         }
       });
+    }
   },
   methods: {
     getTranslateOption(item) {