fix(测试跟踪)：功能用例关联的devops需求,保存后显示异常

--bug=1022341 --user=王旭 【测试跟踪】github#21508，功能用例关联的devops需求，保存后回显为空 https://www.tapd.cn/55049933/s/1355940

test-track/frontend/src/business/case/components/BaseEditItemComponent.vue

@@ -315,30 +315,74 @@ export default {
     },
     getStoryPlatform() {
       let demandOptions = this.contentObject.content.demandOptions || [];
+      let optionPlatform = "";
       if (demandOptions.length > 0) {
-        let demand = demandOptions.find((item) => {
+        for (let i = 0; i < demandOptions.length; i++) {
-          return item.value === this.contentObject.content.demandId;
+          if (demandOptions[i].value === this.contentObject.content.demandId) {
+            optionPlatform = this.handleDemandOptionPlatform(demandOptions[i]);
+            break;
+          }
+          if (demandOptions[i].children && demandOptions[i].children.length > 0) {
+            optionPlatform = this.findChilder(
+              demandOptions[i].children,
+              this.contentObject.content.demandId,
+            );
+          }
+        }
+      }
+      return optionPlatform;
+    },
+    findChilder(data, demandId) {
+      let optionPlatform = "";
+      if (data.children && data.children.length > 0) {
+        this.findChilder(
+          data.children,
+          demandId
+        );
+      }
+      data.forEach((item) => {
+        if (item.value === demandId) {
+          optionPlatform = this.handleDemandOptionPlatform(item);
+        }
       });
-        if (demand) {
+      return optionPlatform;
-          return this.handleDemandOptionPlatform(demand);
-        }
-      }
-      return "";
     },
     getStoryLabel() {
       let demandOptions = this.contentObject.content.demandOptions || [];
+      let optionPlatform = "";
       if (demandOptions.length > 0) {
-        let demand = demandOptions.find((item) => {
+        for (let i = 0; i < demandOptions.length; i++) {
-          return item.value === this.contentObject.content.demandId;
+          if (demandOptions[i].value === this.contentObject.content.demandId) {
+            optionPlatform = this.handleDemandOptionLabel(demandOptions[i]);
+            break;
+          }
+          if (demandOptions[i].children && demandOptions[i].children.length > 0) {
+            optionPlatform = this.findDemandOptionLabelChilder(
+              demandOptions[i].children,
+              this.contentObject.content.demandId,
+            );
+          }
+          if (demandOptions[i].value === "other") {
+            optionPlatform = this.$t("test_track.case.other");
+          }
+        }
+      }
+      return optionPlatform;
+    },
+    findDemandOptionLabelChilder(data, demandId) {
+      let optionPlatform = "";
+      if (data.children && data.children.length > 0) {
+        this.findChilder(
+          data.children,
+          demandId
+        );
+      }
+      data.forEach((item) => {
+        if (item.value === demandId) {
+          optionPlatform = this.handleDemandOptionLabel(item);
+        }
       });
-        if (demand) {
+      return optionPlatform;
-          if (demand.value === "other") {
-            return this.$t("test_track.case.other");
-          }
-          return this.handleDemandOptionLabel(demand);
-        }
-      }
-      return "";
     },
     handleDemandOptionPlatform(data) {
       if (data.platform) {