fix(测试跟踪): 脑图提示错误信息后，再次保存会导致用例丢失

--bug=1021999 --user=陈建星 【测试跟踪】github#21368，用例在脑图模式下，将已经带有case的模块B1拖动到新建的非模块脑图分支B2下保存，会导致B1下的用例丢失 https://www.tapd.cn/55049933/s/1328907

test-track/frontend/src/business/common/minder/TestCaseMinder.vue

@@ -44,7 +44,7 @@ import {
   getChildNodeId,
   handleAfterSave,
   handleExpandToLevel,
-  handleMinderIssueDelete,
+  handleMinderIssueDelete, handleSaveError,
   handleTestCaseAdd,
   handTestCaeEdit,
   isCaseNodeData,
@@ -590,6 +590,7 @@ export default {
         id: data.id,
         resource: data.resource,
       };
+      data.originId = data.id;
       if (nodeData.id && nodeData.id.length > 20) {
         nodeData.isEdit = true; // 编辑
       } else {
@@ -608,6 +609,7 @@ export default {
     },
     throwError(tip) {
       this.$error(tip)
+      handleSaveError(window.minder.getRoot());
       throw new Error(tip);
     },
     tagEditCheck() {

test-track/frontend/src/business/common/minder/minderUtils.js

@@ -531,6 +531,8 @@ export function handleAfterSave(rootNode) {
   rootNode.data.deleteChild = null;
   rootNode.data.changed = false;
   rootNode.data.contextChanged = false;
+  rootNode.data.originId = null;
+  rootNode.data.isExtraNode = false;
   if (isModuleNode(rootNode)) {
     rootNode.data.type = 'node';
   } else if (isCaseNodeData(rootNode.data)) {
@@ -543,6 +545,19 @@ export function handleAfterSave(rootNode) {
   }
 }
 
+export function handleSaveError(rootNode) {
+  if (rootNode.data.originId) {
+    rootNode.data.id = rootNode.data.originId;
+  }
+  rootNode.data.originId = null;
+  rootNode.data.isExtraNode = false;
+  if (rootNode.children) {
+    for (let i = 0; i < rootNode.children.length; i++) {
+      handleSaveError(rootNode.children[i]);
+    }
+  }
+}
+
 export function getChildNodeId(rootNode, nodeIds) {
   //递归获取所有子节点ID
   if (rootNode.data.id) {