bug fix

src/modules/question/components/import-edit/BankedClozeQuestion.vue

@@ -97,8 +97,9 @@ export default {
       let data = {
         ...this.question,
         quesParam: { matchingMode: this.matchingMode },
+        subQuestions: [],
       };
-
+      if (!this.$refs.MatchQuestion) return;
       data.subQuestions = this.$refs.MatchQuestion.map((compInst) =>
         compInst.getData()
       );

src/modules/question/components/import-edit/NestedQuestion.vue

@@ -79,7 +79,8 @@ export default {
       return true;
     },
     getData() {
-      let data = { ...this.question };
+      let data = { ...this.question, subQuestions: [] };
+      if (!this.$refs.QuestionEditDetail) return;
       data.subQuestions = this.$refs.QuestionEditDetail.map((compInst) =>
         compInst.getData()
       );