fix：【【修改轨迹内容】轨迹标记没有值时，显示了id】https://www.tapd.cn/60863849/bugtrace/bugs/view?bug_id=1160863849001032585

src/SJZY.Track.Application.Contract/Dtos/TrackContents/EditTrackContentInput.cs

@@ -88,7 +88,7 @@
         /// <summary>
         /// 轨迹标记id
         /// </summary>
-        public int TrackFlagId { get; set; }
+        public int? TrackFlagId { get; set; }
 
         /// <summary>
         /// 轨迹标记

src/SJZY.Track.Application/Services/TrackContents/TrackContentService.cs

@@ -59,6 +59,8 @@ public class TrackContentService : ApplicationService
         }
 
         var dto = ObjectMapper.Map<GetTrackContentDetailVO, GetTrackContentDetailDto>(detailInfo);
+
+        if (dto.TrackFlagId == 0) dto.TrackFlagId = null;
         return new UnifyResultDto<GetTrackContentDetailDto>("200", "", dto);
     }