修复获取检验项报错的bug

services/om/implments/SerialOrder.service.impl.go

@@ -1200,7 +1200,7 @@ func (impl *SerialOrderServiceImplement) CheckTracing(user *global.User, serialO
 		return nil, grmi.NewBusinessError("查询工单检验项失败, 错误:" + err.Error())
 	}
 	if len(inspectionItemLi) != 0 {
-		maxPos = inspectionItemLi[len(insertInspectionItemLi)-1].Pos
+		maxPos = inspectionItemLi[len(inspectionItemLi)-1].Pos
 	}
 	attributeLi, err := articleAtocdDao.SelectByArtId(serialOrder.ArtId)
 	if err != nil {