fix: 更新缓存

src/pages/learn/answer.vue

@@ -404,7 +404,7 @@ export default {
       // 顺序练习，更新答题卡
       if (this.source === 1){
         this.questionList[this.questionWarehouseId][this.currentIndex] = item
-        this.$u.vuex(`questionList.${this.questionWarehouseId}`, this.questionList[this.questionWarehouseId])
+        this.$u.vuex(`questionList.${this.questionWarehouseId}`, JSON.parse(JSON.stringify(this.questionList[this.questionWarehouseId])))
         this.$u.vuex(`lastIndex.${this.questionWarehouseId}`, this.currentIndex)
 
         // 统计是否达满所有试题
@@ -516,7 +516,7 @@ export default {
           info.collectionFlag = !status
           if (this.source === 1) { //更新缓存数据
             this.questionList[this.questionWarehouseId][this.currentIndex] = info
-            this.$u.vuex(`questionList.${this.questionWarehouseId}`, this.questionList[this.questionWarehouseId])
+            this.$u.vuex(`questionList.${this.questionWarehouseId}`, JSON.parse(JSON.stringify(this.questionList[this.questionWarehouseId])))
           }
         }
       })