主表映射关系 如果是空的就不赋值

develop/@gms/gms-plugin-billexpand/src/components-control/add-info-modal.vue

@@ -237,7 +237,9 @@ export default {
         obj.fieldBillRelation.forEach(v=>{
           let field = bill.billdata.billTable.masterName + "." + v.originalField;
           let value = this.masterFieldsObj[v.targetField];
+          if(value){//如果是空的就不赋值
             bill.getMasterData().setValue(field,value);
+          }
         })
       }
     },