bug fix

src/modules/exam/components/createExamAndPrintTask/InfoPrintTask.vue

@@ -476,6 +476,7 @@ export default {
         printHouseId: null,
         printHouseName: null,
         extendFields: "",
+        backupCount: this.infoExamPrintPlan.backupCount,
         ...this.modalForm
       };
       let extendFieldModal = {};