UITableView单元格数据在分页时重复 - 目标C

Question

我正在使用Objective C和Parse。我有一个显示Parse照片的UITableView。前10个单元加载然后你可以为下10个单元加载更多，依此类推。我的问题与我收到照片的同一个班级，我也想显示标题栏。前10个单元格正确显示了标题，当我查看标题开始重复的下一个10个单元格时。照片不重复，所以我不确定字幕的原因。下面是我加载UITableView的代码：

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath object:(PFObject *)object {

static NSString *CellIdentifier = @"Cell";

if (indexPath.section == self.objects.count) {
    // this behavior is normally handled by PFQueryTableViewController, but we are using sections for each object and we must handle this ourselves
    UITableViewCell *cell = [self tableView:tableView cellForNextPageAtIndexPath:indexPath];
    return cell;
}
else {
    ESPhotoCell *cell = (ESPhotoCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    if (cell == nil) {
        cell = [[ESPhotoCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
        [cell.mediaItemButton addTarget:self action:@selector(didTapOnPhotoAction:) forControlEvents:UIControlEventTouchUpInside];
    }

    cell.mediaItemButton.tag = indexPath.section;
    //The below line of code displays the black square where the photo would be.
    cell.imageView.image = [UIImage imageNamed:@"PlaceholderPhoto"];

    if (object) {

        //The below line displays the users photo on the timeline.
        //The following 2 lines is what fills the display cell that shows the photo.
        cell.imageView.clipsToBounds = YES;
        cell.imageView.contentMode = UIViewContentModeScaleAspectFill;

        //The below line is what displays the image on the home timeline.
        cell.imageView.file = [object objectForKey:kESPhotoPictureKey];

        [cell.imageView loadInBackground];


        //Below is what I am trying to display the captions
        NSString *caption = [object objectForKey:@"caption"];

        if (caption != nil) {
            cell.captionText.text = [object objectForKey:@"caption"];
        }

    }

    return cell;
    }
}

对此问题的任何帮助都会受到赞赏，因为我对移动开发还不熟悉。