fix: 编辑相同用例只开一个tab

frontend/src/business/components/track/case/TestCase.vue

@@ -429,6 +429,8 @@ export default {
       this.$refs.nodeTree.decrease(id);
     },
     editTestCase(testCase) {
+      const index = this.tabs.find(p => p.testCaseInfo && p.testCaseInfo.id === testCase.id);
+      if (!index) {
         this.type = "edit";
         this.testCaseReadOnly = false;
         if (testCase.label !== "redirect") {
@@ -440,6 +442,9 @@ export default {
         let hasEditPermission = hasPermission('PROJECT_TRACK_CASE:READ+EDIT');
         this.$set(testCase, 'rowClickHasPermission', hasEditPermission);
         this.addTab({name: 'edit', testCaseInfo: testCase});
+      } else {
+        this.activeName = index.name;
+      }
     },
     handleCaseCreateOrEdit(data, type) {
       if (this.$refs.minder) {