fix(测试跟踪): 测试计划报告缺陷列表加载报错

--bug=1018798 --user=陈建星 【测试跟踪】测试计划-查看测试报告-功能用例分析-缺陷列表打不开，报500 https://www.tapd.cn/55049933/s/1275756

test-track/backend/src/main/java/io/metersphere/service/IssuesService.java

@@ -854,6 +854,11 @@ public class IssuesService {
         return DistinctKeyUtil.distinctByKey(planIssues, IssuesDao::getId);
     }
 
+    /**
+     * 获取缺陷状态的自定义字段替换
+     * @param planIssues
+     * @param planId
+     */
     private void replaceStatus(List<IssuesDao> planIssues, String planId) {
         TestPlanWithBLOBs testPlan = testPlanService.get(planId);
         CustomField customField = baseCustomFieldService.getCustomFieldByName(testPlan.getProjectId(), SystemCustomField.ISSUE_STATUS);
@@ -865,7 +870,7 @@ public class IssuesService {
                         List<CustomFieldOptionDTO> options = JSON.parseArray(customField.getOptions(), CustomFieldOptionDTO.class);
                         for (CustomFieldOptionDTO option : options) {
                             String value = field.getValue();
-                            if (value != null) {
+                            if (StringUtils.isNotBlank(value)) {
                                 value = (String) JSON.parseObject(value);
                             }
                             if (StringUtils.equals(option.getValue(), value)) {