解决历史数据没勾选钢印号时钢印号列表加载处理错误的Bug

fhKeeper/formulahousekeeper/timesheet-workshop-h5/src/views/workView/fillReport.vue

@@ -210,7 +210,7 @@ export default {
             this.reportForm = res.data;
             this.oldPlanSteelStampNumberList=this.reportForm.planSteelStampNumberList
             //当日选中的钢印号，默认勾选上
-            this.reportForm.checkedSteelNum = this.reportForm.steelNumArray;
+            this.reportForm.checkedSteelNum = this.reportForm.steelNumArray==null?[]:this.reportForm.steelNumArray;
             if (this.reportForm.check_type == 0) {
               //自检
               this.reportForm.checker_name = this.user.name;