系统DVP 试验资质编辑模态框回显增加null的显示

src/views/systemDVP/dvpPlan/index.vue

@@ -1240,7 +1240,7 @@ export default {
         this.editParam.verify = val.verify;
         this.editParam.testSource = val.testSource;
         this.editParam.targetRequire = val.targetRequire;
-        this.editParam.testCertification = val.testCertification;
+        this.editParam.testCertification = val.testCertification || undefined;
         this.editParam.planEndTime = val.planEndTime;
         this.editParam.planStartTime = val.planStartTime;
         this.editParam.count = val.count || undefined;