Can qBittorrent set sparse attributes on a downloaded file imported from another source?

[DOSforever]

qBittorrent 能否对一个导入的下载文件设置稀疏属性？

在 NTFS 系统上，qBittorrent 对从它自己开始下载的文件可以自动设置为稀疏属性，但对一个外来导入的文件似乎不会做这样的设置。
什么是外来导入的文件，我的意思就是，比如某个文件是在另外一台机器上下载到一半还未完成，然后我把该文件复制到这台机器上，给 qBittorrent 相同的下载链接或 .torrent 文件让其继续下载，下载位置指向复制过来的未完成的文件，那么 qBittorrent 将在 checking 完文件后接着下载其余部分。但有什么方法让 qBittorrent 设置该文件为稀疏属性？这是 Windows 限制使然还是 qBittorrent 没有做这样的功能？

---

On an NTFS system, qBittorrent automatically assigns sparse attributes to files it starts downloading itself. However, it doesn't seem to apply this setting to externally imported files.
By "externally imported," I mean a situation where a file was partially downloaded on another machine, then copied over to this one. I provide qBittorrent with the same download link or .torrent file, directing it to continue the download on the incomplete copy. After checking the file, qBittorrent proceeds to download the remaining parts. Is there a way to make qBittorrent set the file as sparse? Is this a Windows restriction, or is such functionality simply not available in qBittorrent?